Home / 220,842-331,263-54,630

Finding the Fourth Proportional to 220,842, 331,263 and 54,630

Calculator

Solution

The fourth proportional to 220,842, 331,263 and 54,630 is: 81,945

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,842 : 331,263 = 54,630 : x
  2. Step 2: Convert to fraction form
    220,842/331,263 = 54,630/x
  3. Step 3: Cross multiply
    220,842x = 331,263 × 54,630
  4. Step 4: Simplify right side
    220,842x = 18,096,897,690
  5. Step 5: Solve for x
    x = 18,096,897,690/220,842
  6. Step 6: Final answer
    x = 81,945

Related Problems

Find fourth proportional to 110,421, 165,631.50 and 27,315
Half scale
Find fourth proportional to 441,684, 662,526 and 109,260
Double scale
Find fourth proportional to 220,843, 331,264.50 and 54,631
Similar ratio
Find fourth proportional to 331,263, 496,894.50 and 81,945
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.