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Finding the Fourth Proportional to 395,159.33, 592,764.47 and 138,960.47

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Solution

The fourth proportional to 395,159.33, 592,764.47 and 138,960.47 is: 208,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,159.33 : 592,764.47 = 138,960.47 : x
  2. Step 2: Convert to fraction form
    395,159.33/592,764.47 = 138,960.47/x
  3. Step 3: Cross multiply
    395,159.33x = 592,764.47 × 138,960.47
  4. Step 4: Simplify right side
    395,159.33x = 82,370,825,691.88
  5. Step 5: Solve for x
    x = 82,370,825,691.88/395,159.33
  6. Step 6: Final answer
    x = 208,449.66

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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.