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Finding the Fourth Proportional to 247,456.86, 371,206.11 and 79,001.22

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Solution

The fourth proportional to 247,456.86, 371,206.11 and 79,001.22 is: 118,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,456.86 : 371,206.11 = 79,001.22 : x
  2. Step 2: Convert to fraction form
    247,456.86/371,206.11 = 79,001.22/x
  3. Step 3: Cross multiply
    247,456.86x = 371,206.11 × 79,001.22
  4. Step 4: Simplify right side
    247,456.86x = 29,325,735,561.45
  5. Step 5: Solve for x
    x = 29,325,735,561.45/247,456.86
  6. Step 6: Final answer
    x = 118,508.48

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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.