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Finding the Fourth Proportional to 286,161.21, 429,249.96 and 75,799.17

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Solution

The fourth proportional to 286,161.21, 429,249.96 and 75,799.17 is: 113,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,161.21 : 429,249.96 = 75,799.17 : x
  2. Step 2: Convert to fraction form
    286,161.21/429,249.96 = 75,799.17/x
  3. Step 3: Cross multiply
    286,161.21x = 429,249.96 × 75,799.17
  4. Step 4: Simplify right side
    286,161.21x = 32,536,790,690.53
  5. Step 5: Solve for x
    x = 32,536,790,690.53/286,161.21
  6. Step 6: Final answer
    x = 113,700.91

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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.