Home / 453.40-625.52-256.87

Finding the Fourth Proportional to 453.40, 625.52 and 256.87

Calculator

Solution

The fourth proportional to 453.40, 625.52 and 256.87 is: 354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.40 : 625.52 = 256.87 : x
  2. Step 2: Convert to fraction form
    453.40/625.52 = 256.87/x
  3. Step 3: Cross multiply
    453.40x = 625.52 × 256.87
  4. Step 4: Simplify right side
    453.40x = 160,678.75
  5. Step 5: Solve for x
    x = 160,678.75/453.40
  6. Step 6: Final answer
    x = 354.39

Related Problems

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.