Home / 391,152.73-539,772.10-240,220.57

Finding the Fourth Proportional to 391,152.73, 539,772.10 and 240,220.57

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Solution

The fourth proportional to 391,152.73, 539,772.10 and 240,220.57 is: 331,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,152.73 : 539,772.10 = 240,220.57 : x
  2. Step 2: Convert to fraction form
    391,152.73/539,772.10 = 240,220.57/x
  3. Step 3: Cross multiply
    391,152.73x = 539,772.10 × 240,220.57
  4. Step 4: Simplify right side
    391,152.73x = 129,664,361,532.10
  5. Step 5: Solve for x
    x = 129,664,361,532.10/391,152.73
  6. Step 6: Final answer
    x = 331,492.92

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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.