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Finding the Fourth Proportional to 286,217.52, 429,355.68 and 75,855.48

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Solution

The fourth proportional to 286,217.52, 429,355.68 and 75,855.48 is: 113,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,217.52 : 429,355.68 = 75,855.48 : x
  2. Step 2: Convert to fraction form
    286,217.52/429,355.68 = 75,855.48/x
  3. Step 3: Cross multiply
    286,217.52x = 429,355.68 × 75,855.48
  4. Step 4: Simplify right side
    286,217.52x = 32,568,981,197.13
  5. Step 5: Solve for x
    x = 32,568,981,197.13/286,217.52
  6. Step 6: Final answer
    x = 113,791.01

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1.5x scale

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.