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Finding the Fourth Proportional to 308,766.90, 463,150.35 and 131,279.70

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Solution

The fourth proportional to 308,766.90, 463,150.35 and 131,279.70 is: 196,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,766.90 : 463,150.35 = 131,279.70 : x
  2. Step 2: Convert to fraction form
    308,766.90/463,150.35 = 131,279.70/x
  3. Step 3: Cross multiply
    308,766.90x = 463,150.35 × 131,279.70
  4. Step 4: Simplify right side
    308,766.90x = 60,802,239,002.90
  5. Step 5: Solve for x
    x = 60,802,239,002.90/308,766.90
  6. Step 6: Final answer
    x = 196,919.55

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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.