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Finding the Fourth Proportional to 218,096.70, 300,952.71 and 127,473.90

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Solution

The fourth proportional to 218,096.70, 300,952.71 and 127,473.90 is: 175,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,096.70 : 300,952.71 = 127,473.90 : x
  2. Step 2: Convert to fraction form
    218,096.70/300,952.71 = 127,473.90/x
  3. Step 3: Cross multiply
    218,096.70x = 300,952.71 × 127,473.90
  4. Step 4: Simplify right side
    218,096.70x = 38,363,615,659.27
  5. Step 5: Solve for x
    x = 38,363,615,659.27/218,096.70
  6. Step 6: Final answer
    x = 175,901.86

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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.