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Finding the Fourth Proportional to 247,338.36, 371,167.92 and 89,553.60

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Solution

The fourth proportional to 247,338.36, 371,167.92 and 89,553.60 is: 134,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,338.36 : 371,167.92 = 89,553.60 : x
  2. Step 2: Convert to fraction form
    247,338.36/371,167.92 = 89,553.60/x
  3. Step 3: Cross multiply
    247,338.36x = 371,167.92 × 89,553.60
  4. Step 4: Simplify right side
    247,338.36x = 33,239,423,440.51
  5. Step 5: Solve for x
    x = 33,239,423,440.51/247,338.36
  6. Step 6: Final answer
    x = 134,388.47

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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.