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Finding the Fourth Proportional to 247,930.88, 342,144.61 and 147,328.88

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Solution

The fourth proportional to 247,930.88, 342,144.61 and 147,328.88 is: 203,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,930.88 : 342,144.61 = 147,328.88 : x
  2. Step 2: Convert to fraction form
    247,930.88/342,144.61 = 147,328.88/x
  3. Step 3: Cross multiply
    247,930.88x = 342,144.61 × 147,328.88
  4. Step 4: Simplify right side
    247,930.88x = 50,407,780,110.29
  5. Step 5: Solve for x
    x = 50,407,780,110.29/247,930.88
  6. Step 6: Final answer
    x = 203,313.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.