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Finding the Fourth Proportional to 432,005.10, 648,007.65 and 132,483.30

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Solution

The fourth proportional to 432,005.10, 648,007.65 and 132,483.30 is: 198,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,005.10 : 648,007.65 = 132,483.30 : x
  2. Step 2: Convert to fraction form
    432,005.10/648,007.65 = 132,483.30/x
  3. Step 3: Cross multiply
    432,005.10x = 648,007.65 × 132,483.30
  4. Step 4: Simplify right side
    432,005.10x = 85,850,191,897.25
  5. Step 5: Solve for x
    x = 85,850,191,897.25/432,005.10
  6. Step 6: Final answer
    x = 198,724.95

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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.