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Finding the Fourth Proportional to 398,882.08, 550,447.62 and 229,127.12

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Solution

The fourth proportional to 398,882.08, 550,447.62 and 229,127.12 is: 316,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,882.08 : 550,447.62 = 229,127.12 : x
  2. Step 2: Convert to fraction form
    398,882.08/550,447.62 = 229,127.12/x
  3. Step 3: Cross multiply
    398,882.08x = 550,447.62 × 229,127.12
  4. Step 4: Simplify right side
    398,882.08x = 126,122,477,881.45
  5. Step 5: Solve for x
    x = 126,122,477,881.45/398,882.08
  6. Step 6: Final answer
    x = 316,189.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.