Home / 395,175.78-592,825.41-128,874.36

Finding the Fourth Proportional to 395,175.78, 592,825.41 and 128,874.36

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Solution

The fourth proportional to 395,175.78, 592,825.41 and 128,874.36 is: 193,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,175.78 : 592,825.41 = 128,874.36 : x
  2. Step 2: Convert to fraction form
    395,175.78/592,825.41 = 128,874.36/x
  3. Step 3: Cross multiply
    395,175.78x = 592,825.41 × 128,874.36
  4. Step 4: Simplify right side
    395,175.78x = 76,399,998,011.86
  5. Step 5: Solve for x
    x = 76,399,998,011.86/395,175.78
  6. Step 6: Final answer
    x = 193,331.68

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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.