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Finding the Fourth Proportional to 272,882.64, 409,367.69 and 115,134.33

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Solution

The fourth proportional to 272,882.64, 409,367.69 and 115,134.33 is: 172,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,882.64 : 409,367.69 = 115,134.33 : x
  2. Step 2: Convert to fraction form
    272,882.64/409,367.69 = 115,134.33/x
  3. Step 3: Cross multiply
    272,882.64x = 409,367.69 × 115,134.33
  4. Step 4: Simplify right side
    272,882.64x = 47,132,272,952.80
  5. Step 5: Solve for x
    x = 47,132,272,952.80/272,882.64
  6. Step 6: Final answer
    x = 172,719.94

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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.