Home / 268,224.33-402,337.04-99,781.59

Finding the Fourth Proportional to 268,224.33, 402,337.04 and 99,781.59

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Solution

The fourth proportional to 268,224.33, 402,337.04 and 99,781.59 is: 149,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,224.33 : 402,337.04 = 99,781.59 : x
  2. Step 2: Convert to fraction form
    268,224.33/402,337.04 = 99,781.59/x
  3. Step 3: Cross multiply
    268,224.33x = 402,337.04 × 99,781.59
  4. Step 4: Simplify right side
    268,224.33x = 40,145,829,068.19
  5. Step 5: Solve for x
    x = 40,145,829,068.19/268,224.33
  6. Step 6: Final answer
    x = 149,672.59

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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.