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Finding the Fourth Proportional to 491,327.52, 736,991.66 and 136,341.88

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Solution

The fourth proportional to 491,327.52, 736,991.66 and 136,341.88 is: 204,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,327.52 : 736,991.66 = 136,341.88 : x
  2. Step 2: Convert to fraction form
    491,327.52/736,991.66 = 136,341.88/x
  3. Step 3: Cross multiply
    491,327.52x = 736,991.66 × 136,341.88
  4. Step 4: Simplify right side
    491,327.52x = 100,482,828,468.72
  5. Step 5: Solve for x
    x = 100,482,828,468.72/491,327.52
  6. Step 6: Final answer
    x = 204,512.93

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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.