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Finding the Fourth Proportional to 341,287.82, 512,127.33 and 138,846.57

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Solution

The fourth proportional to 341,287.82, 512,127.33 and 138,846.57 is: 208,349.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,287.82 : 512,127.33 = 138,846.57 : x
  2. Step 2: Convert to fraction form
    341,287.82/512,127.33 = 138,846.57/x
  3. Step 3: Cross multiply
    341,287.82x = 512,127.33 × 138,846.57
  4. Step 4: Simplify right side
    341,287.82x = 71,107,121,513.62
  5. Step 5: Solve for x
    x = 71,107,121,513.62/341,287.82
  6. Step 6: Final answer
    x = 208,349.43

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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.