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Finding the Fourth Proportional to 247,984.80, 371,766.92 and 98,330.80

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Solution

The fourth proportional to 247,984.80, 371,766.92 and 98,330.80 is: 147,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,984.80 : 371,766.92 = 98,330.80 : x
  2. Step 2: Convert to fraction form
    247,984.80/371,766.92 = 98,330.80/x
  3. Step 3: Cross multiply
    247,984.80x = 371,766.92 × 98,330.80
  4. Step 4: Simplify right side
    247,984.80x = 36,556,138,657.14
  5. Step 5: Solve for x
    x = 36,556,138,657.14/247,984.80
  6. Step 6: Final answer
    x = 147,412.82

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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.