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Finding the Fourth Proportional to 341,902.38, 512,875.43 and 131,540.32

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Solution

The fourth proportional to 341,902.38, 512,875.43 and 131,540.32 is: 197,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,902.38 : 512,875.43 = 131,540.32 : x
  2. Step 2: Convert to fraction form
    341,902.38/512,875.43 = 131,540.32/x
  3. Step 3: Cross multiply
    341,902.38x = 512,875.43 × 131,540.32
  4. Step 4: Simplify right side
    341,902.38x = 67,463,798,659.01
  5. Step 5: Solve for x
    x = 67,463,798,659.01/341,902.38
  6. Step 6: Final answer
    x = 197,318.89

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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.