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Finding the Fourth Proportional to 247,450.56, 371,101.80 and 129,057.30

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Solution

The fourth proportional to 247,450.56, 371,101.80 and 129,057.30 is: 193,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,450.56 : 371,101.80 = 129,057.30 : x
  2. Step 2: Convert to fraction form
    247,450.56/371,101.80 = 129,057.30/x
  3. Step 3: Cross multiply
    247,450.56x = 371,101.80 × 129,057.30
  4. Step 4: Simplify right side
    247,450.56x = 47,893,396,333.14
  5. Step 5: Solve for x
    x = 47,893,396,333.14/247,450.56
  6. Step 6: Final answer
    x = 193,547.33

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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.