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Finding the Fourth Proportional to 247,444.56, 371,092.80 and 129,051.30

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Solution

The fourth proportional to 247,444.56, 371,092.80 and 129,051.30 is: 193,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,444.56 : 371,092.80 = 129,051.30 : x
  2. Step 2: Convert to fraction form
    247,444.56/371,092.80 = 129,051.30/x
  3. Step 3: Cross multiply
    247,444.56x = 371,092.80 × 129,051.30
  4. Step 4: Simplify right side
    247,444.56x = 47,890,008,260.64
  5. Step 5: Solve for x
    x = 47,890,008,260.64/247,444.56
  6. Step 6: Final answer
    x = 193,538.34

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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.