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Finding the Fourth Proportional to 247,962.22, 371,978.36 and 79,443.13

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Solution

The fourth proportional to 247,962.22, 371,978.36 and 79,443.13 is: 119,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,962.22 : 371,978.36 = 79,443.13 : x
  2. Step 2: Convert to fraction form
    247,962.22/371,978.36 = 79,443.13/x
  3. Step 3: Cross multiply
    247,962.22x = 371,978.36 × 79,443.13
  4. Step 4: Simplify right side
    247,962.22x = 29,551,125,210.67
  5. Step 5: Solve for x
    x = 29,551,125,210.67/247,962.22
  6. Step 6: Final answer
    x = 119,175.92

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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.