Home / 461,251.20-691,646.40-211,651.20

Finding the Fourth Proportional to 461,251.20, 691,646.40 and 211,651.20

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Solution

The fourth proportional to 461,251.20, 691,646.40 and 211,651.20 is: 317,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,251.20 : 691,646.40 = 211,651.20 : x
  2. Step 2: Convert to fraction form
    461,251.20/691,646.40 = 211,651.20/x
  3. Step 3: Cross multiply
    461,251.20x = 691,646.40 × 211,651.20
  4. Step 4: Simplify right side
    461,251.20x = 146,387,790,535.68
  5. Step 5: Solve for x
    x = 146,387,790,535.68/461,251.20
  6. Step 6: Final answer
    x = 317,371.08

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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.