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Finding the Fourth Proportional to 308,801.10, 463,244.85 and 131,306.70

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Solution

The fourth proportional to 308,801.10, 463,244.85 and 131,306.70 is: 196,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,801.10 : 463,244.85 = 131,306.70 : x
  2. Step 2: Convert to fraction form
    308,801.10/463,244.85 = 131,306.70/x
  3. Step 3: Cross multiply
    308,801.10x = 463,244.85 × 131,306.70
  4. Step 4: Simplify right side
    308,801.10x = 60,827,152,545.50
  5. Step 5: Solve for x
    x = 60,827,152,545.50/308,801.10
  6. Step 6: Final answer
    x = 196,978.42

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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.