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Finding the Fourth Proportional to 437,423.90, 656,135.78 and 104,999.90

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Solution

The fourth proportional to 437,423.90, 656,135.78 and 104,999.90 is: 157,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,423.90 : 656,135.78 = 104,999.90 : x
  2. Step 2: Convert to fraction form
    437,423.90/656,135.78 = 104,999.90/x
  3. Step 3: Cross multiply
    437,423.90x = 656,135.78 × 104,999.90
  4. Step 4: Simplify right side
    437,423.90x = 68,894,191,286.42
  5. Step 5: Solve for x
    x = 68,894,191,286.42/437,423.90
  6. Step 6: Final answer
    x = 157,499.83

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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.