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Finding the Fourth Proportional to 298,736, 447,945.60 and 88,344.80

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Solution

The fourth proportional to 298,736, 447,945.60 and 88,344.80 is: 132,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,736 : 447,945.60 = 88,344.80 : x
  2. Step 2: Convert to fraction form
    298,736/447,945.60 = 88,344.80/x
  3. Step 3: Cross multiply
    298,736x = 447,945.60 × 88,344.80
  4. Step 4: Simplify right side
    298,736x = 39,573,664,442.88
  5. Step 5: Solve for x
    x = 39,573,664,442.88/298,736
  6. Step 6: Final answer
    x = 132,470.36

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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.