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Finding the Fourth Proportional to 229,170.15, 316,250.07 and 127,189.68

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Solution

The fourth proportional to 229,170.15, 316,250.07 and 127,189.68 is: 175,519.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,170.15 : 316,250.07 = 127,189.68 : x
  2. Step 2: Convert to fraction form
    229,170.15/316,250.07 = 127,189.68/x
  3. Step 3: Cross multiply
    229,170.15x = 316,250.07 × 127,189.68
  4. Step 4: Simplify right side
    229,170.15x = 40,223,745,203.28
  5. Step 5: Solve for x
    x = 40,223,745,203.28/229,170.15
  6. Step 6: Final answer
    x = 175,519.13

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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.