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Finding the Fourth Proportional to 395,103.32, 592,594.79 and 128,863.41

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Solution

The fourth proportional to 395,103.32, 592,594.79 and 128,863.41 is: 193,275.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,103.32 : 592,594.79 = 128,863.41 : x
  2. Step 2: Convert to fraction form
    395,103.32/592,594.79 = 128,863.41/x
  3. Step 3: Cross multiply
    395,103.32x = 592,594.79 × 128,863.41
  4. Step 4: Simplify right side
    395,103.32x = 76,363,782,521.09
  5. Step 5: Solve for x
    x = 76,363,782,521.09/395,103.32
  6. Step 6: Final answer
    x = 193,275.48

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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.