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Finding the Fourth Proportional to 491,326.77, 736,990.52 and 136,341.13

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Solution

The fourth proportional to 491,326.77, 736,990.52 and 136,341.13 is: 204,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,326.77 : 736,990.52 = 136,341.13 : x
  2. Step 2: Convert to fraction form
    491,326.77/736,990.52 = 136,341.13/x
  3. Step 3: Cross multiply
    491,326.77x = 736,990.52 × 136,341.13
  4. Step 4: Simplify right side
    491,326.77x = 100,482,120,296.09
  5. Step 5: Solve for x
    x = 100,482,120,296.09/491,326.77
  6. Step 6: Final answer
    x = 204,511.80

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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.