Home / 432,003.10-648,004.65-132,481.30

Finding the Fourth Proportional to 432,003.10, 648,004.65 and 132,481.30

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Solution

The fourth proportional to 432,003.10, 648,004.65 and 132,481.30 is: 198,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,003.10 : 648,004.65 = 132,481.30 : x
  2. Step 2: Convert to fraction form
    432,003.10/648,004.65 = 132,481.30/x
  3. Step 3: Cross multiply
    432,003.10x = 648,004.65 × 132,481.30
  4. Step 4: Simplify right side
    432,003.10x = 85,848,498,438.05
  5. Step 5: Solve for x
    x = 85,848,498,438.05/432,003.10
  6. Step 6: Final answer
    x = 198,721.95

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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.