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Finding the Fourth Proportional to 247,034.29, 340,910 and 145,060.96

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Solution

The fourth proportional to 247,034.29, 340,910 and 145,060.96 is: 200,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,034.29 : 340,910 = 145,060.96 : x
  2. Step 2: Convert to fraction form
    247,034.29/340,910 = 145,060.96/x
  3. Step 3: Cross multiply
    247,034.29x = 340,910 × 145,060.96
  4. Step 4: Simplify right side
    247,034.29x = 49,452,731,873.60
  5. Step 5: Solve for x
    x = 49,452,731,873.60/247,034.29
  6. Step 6: Final answer
    x = 200,185.70

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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.