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Finding the Fourth Proportional to 332,987.40, 499,481.10 and 145,998.90

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Solution

The fourth proportional to 332,987.40, 499,481.10 and 145,998.90 is: 218,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,987.40 : 499,481.10 = 145,998.90 : x
  2. Step 2: Convert to fraction form
    332,987.40/499,481.10 = 145,998.90/x
  3. Step 3: Cross multiply
    332,987.40x = 499,481.10 × 145,998.90
  4. Step 4: Simplify right side
    332,987.40x = 72,923,691,170.79
  5. Step 5: Solve for x
    x = 72,923,691,170.79/332,987.40
  6. Step 6: Final answer
    x = 218,998.35

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Double scale
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Similar ratio
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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.