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Finding the Fourth Proportional to 252,659.16, 379,218.24 and 134,429.40

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Solution

The fourth proportional to 252,659.16, 379,218.24 and 134,429.40 is: 201,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,659.16 : 379,218.24 = 134,429.40 : x
  2. Step 2: Convert to fraction form
    252,659.16/379,218.24 = 134,429.40/x
  3. Step 3: Cross multiply
    252,659.16x = 379,218.24 × 134,429.40
  4. Step 4: Simplify right side
    252,659.16x = 50,978,080,472.26
  5. Step 5: Solve for x
    x = 50,978,080,472.26/252,659.16
  6. Step 6: Final answer
    x = 201,766.21

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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.