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Finding the Fourth Proportional to 395,073.64, 592,704.69 and 128,834.47

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Solution

The fourth proportional to 395,073.64, 592,704.69 and 128,834.47 is: 193,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,073.64 : 592,704.69 = 128,834.47 : x
  2. Step 2: Convert to fraction form
    395,073.64/592,704.69 = 128,834.47/x
  3. Step 3: Cross multiply
    395,073.64x = 592,704.69 × 128,834.47
  4. Step 4: Simplify right side
    395,073.64x = 76,360,794,602.66
  5. Step 5: Solve for x
    x = 76,360,794,602.66/395,073.64
  6. Step 6: Final answer
    x = 193,282.43

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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.