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Finding the Fourth Proportional to 247,565.57, 371,368.19 and 79,109.66

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Solution

The fourth proportional to 247,565.57, 371,368.19 and 79,109.66 is: 118,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,565.57 : 371,368.19 = 79,109.66 : x
  2. Step 2: Convert to fraction form
    247,565.57/371,368.19 = 79,109.66/x
  3. Step 3: Cross multiply
    247,565.57x = 371,368.19 × 79,109.66
  4. Step 4: Simplify right side
    247,565.57x = 29,378,812,371.91
  5. Step 5: Solve for x
    x = 29,378,812,371.91/247,565.57
  6. Step 6: Final answer
    x = 118,670.84

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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.