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Finding the Fourth Proportional to 491,249.40, 736,874.04 and 136,263.42

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Solution

The fourth proportional to 491,249.40, 736,874.04 and 136,263.42 is: 204,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,249.40 : 736,874.04 = 136,263.42 : x
  2. Step 2: Convert to fraction form
    491,249.40/736,874.04 = 136,263.42/x
  3. Step 3: Cross multiply
    491,249.40x = 736,874.04 × 136,263.42
  4. Step 4: Simplify right side
    491,249.40x = 100,408,976,799.62
  5. Step 5: Solve for x
    x = 100,408,976,799.62/491,249.40
  6. Step 6: Final answer
    x = 204,395.11

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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.