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Finding the Fourth Proportional to 247,641.36, 371,515.38 and 76,859.52

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Solution

The fourth proportional to 247,641.36, 371,515.38 and 76,859.52 is: 115,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,641.36 : 371,515.38 = 76,859.52 : x
  2. Step 2: Convert to fraction form
    247,641.36/371,515.38 = 76,859.52/x
  3. Step 3: Cross multiply
    247,641.36x = 371,515.38 × 76,859.52
  4. Step 4: Simplify right side
    247,641.36x = 28,554,493,779.42
  5. Step 5: Solve for x
    x = 28,554,493,779.42/247,641.36
  6. Step 6: Final answer
    x = 115,305.83

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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.