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Finding the Fourth Proportional to 247,828.31, 371,737.19 and 79,349.12

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Solution

The fourth proportional to 247,828.31, 371,737.19 and 79,349.12 is: 119,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,828.31 : 371,737.19 = 79,349.12 : x
  2. Step 2: Convert to fraction form
    247,828.31/371,737.19 = 79,349.12/x
  3. Step 3: Cross multiply
    247,828.31x = 371,737.19 × 79,349.12
  4. Step 4: Simplify right side
    247,828.31x = 29,497,016,642.34
  5. Step 5: Solve for x
    x = 29,497,016,642.34/247,828.31
  6. Step 6: Final answer
    x = 119,021.98

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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.