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Finding the Fourth Proportional to 229,419.70, 316,649.78 and 127,480.18

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Solution

The fourth proportional to 229,419.70, 316,649.78 and 127,480.18 is: 175,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,419.70 : 316,649.78 = 127,480.18 : x
  2. Step 2: Convert to fraction form
    229,419.70/316,649.78 = 127,480.18/x
  3. Step 3: Cross multiply
    229,419.70x = 316,649.78 × 127,480.18
  4. Step 4: Simplify right side
    229,419.70x = 40,366,570,951.36
  5. Step 5: Solve for x
    x = 40,366,570,951.36/229,419.70
  6. Step 6: Final answer
    x = 175,950.76

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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.