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Finding the Fourth Proportional to 259,274.43, 388,630.44 and 132,741.15

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Solution

The fourth proportional to 259,274.43, 388,630.44 and 132,741.15 is: 198,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,274.43 : 388,630.44 = 132,741.15 : x
  2. Step 2: Convert to fraction form
    259,274.43/388,630.44 = 132,741.15/x
  3. Step 3: Cross multiply
    259,274.43x = 388,630.44 × 132,741.15
  4. Step 4: Simplify right side
    259,274.43x = 51,587,251,530.61
  5. Step 5: Solve for x
    x = 51,587,251,530.61/259,274.43
  6. Step 6: Final answer
    x = 198,967.76

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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.