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Finding the Fourth Proportional to 247,715.53, 371,089.56 and 117,699.31

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Solution

The fourth proportional to 247,715.53, 371,089.56 and 117,699.31 is: 176,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,715.53 : 371,089.56 = 117,699.31 : x
  2. Step 2: Convert to fraction form
    247,715.53/371,089.56 = 117,699.31/x
  3. Step 3: Cross multiply
    247,715.53x = 371,089.56 × 117,699.31
  4. Step 4: Simplify right side
    247,715.53x = 43,676,985,160.20
  5. Step 5: Solve for x
    x = 43,676,985,160.20/247,715.53
  6. Step 6: Final answer
    x = 176,319.12

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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.