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Finding the Fourth Proportional to 247,362.25, 371,103.77 and 78,882.58

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Solution

The fourth proportional to 247,362.25, 371,103.77 and 78,882.58 is: 118,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,362.25 : 371,103.77 = 78,882.58 : x
  2. Step 2: Convert to fraction form
    247,362.25/371,103.77 = 78,882.58/x
  3. Step 3: Cross multiply
    247,362.25x = 371,103.77 × 78,882.58
  4. Step 4: Simplify right side
    247,362.25x = 29,273,622,430.91
  5. Step 5: Solve for x
    x = 29,273,622,430.91/247,362.25
  6. Step 6: Final answer
    x = 118,343.13

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1.5x scale

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.