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Finding the Fourth Proportional to 308,609.38, 463,110.89 and 131,116.39

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Solution

The fourth proportional to 308,609.38, 463,110.89 and 131,116.39 is: 196,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,609.38 : 463,110.89 = 131,116.39 : x
  2. Step 2: Convert to fraction form
    308,609.38/463,110.89 = 131,116.39/x
  3. Step 3: Cross multiply
    308,609.38x = 463,110.89 × 131,116.39
  4. Step 4: Simplify right side
    308,609.38x = 60,721,426,253.13
  5. Step 5: Solve for x
    x = 60,721,426,253.13/308,609.38
  6. Step 6: Final answer
    x = 196,758.20

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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.