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Finding the Fourth Proportional to 247,921.20, 371,663.69 and 98,266.54

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Solution

The fourth proportional to 247,921.20, 371,663.69 and 98,266.54 is: 147,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,921.20 : 371,663.69 = 98,266.54 : x
  2. Step 2: Convert to fraction form
    247,921.20/371,663.69 = 98,266.54/x
  3. Step 3: Cross multiply
    247,921.20x = 371,663.69 × 98,266.54
  4. Step 4: Simplify right side
    247,921.20x = 36,522,103,001.61
  5. Step 5: Solve for x
    x = 36,522,103,001.61/247,921.20
  6. Step 6: Final answer
    x = 147,313.35

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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.