Home / 282,651.12-423,979.11-82,974.78

Finding the Fourth Proportional to 282,651.12, 423,979.11 and 82,974.78

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Solution

The fourth proportional to 282,651.12, 423,979.11 and 82,974.78 is: 124,462.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,651.12 : 423,979.11 = 82,974.78 : x
  2. Step 2: Convert to fraction form
    282,651.12/423,979.11 = 82,974.78/x
  3. Step 3: Cross multiply
    282,651.12x = 423,979.11 × 82,974.78
  4. Step 4: Simplify right side
    282,651.12x = 35,179,573,376.85
  5. Step 5: Solve for x
    x = 35,179,573,376.85/282,651.12
  6. Step 6: Final answer
    x = 124,462.88

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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.