Home / 421,756.92-581,967.18-251,955

Finding the Fourth Proportional to 421,756.92, 581,967.18 and 251,955

Calculator

Solution

The fourth proportional to 421,756.92, 581,967.18 and 251,955 is: 347,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,756.92 : 581,967.18 = 251,955 : x
  2. Step 2: Convert to fraction form
    421,756.92/581,967.18 = 251,955/x
  3. Step 3: Cross multiply
    421,756.92x = 581,967.18 × 251,955
  4. Step 4: Simplify right side
    421,756.92x = 146,629,540,836.90
  5. Step 5: Solve for x
    x = 146,629,540,836.90/421,756.92
  6. Step 6: Final answer
    x = 347,663.63

Related Problems

Find fourth proportional to 210,878.46, 290,983.59 and 125,977.50
Half scale
Find fourth proportional to 843,513.84, 1,163,934.36 and 503,910
Double scale
Find fourth proportional to 421,757.92, 581,968.56 and 251,956
Similar ratio
Find fourth proportional to 632,635.38, 872,950.77 and 377,932.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.