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Finding the Fourth Proportional to 252,675.86, 379,068.29 and 72,760.08

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Solution

The fourth proportional to 252,675.86, 379,068.29 and 72,760.08 is: 109,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,675.86 : 379,068.29 = 72,760.08 : x
  2. Step 2: Convert to fraction form
    252,675.86/379,068.29 = 72,760.08/x
  3. Step 3: Cross multiply
    252,675.86x = 379,068.29 × 72,760.08
  4. Step 4: Simplify right side
    252,675.86x = 27,581,037,593.41
  5. Step 5: Solve for x
    x = 27,581,037,593.41/252,675.86
  6. Step 6: Final answer
    x = 109,155.81

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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.