Home / 215,510.24-322,930.07-82,317.80

Finding the Fourth Proportional to 215,510.24, 322,930.07 and 82,317.80

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Solution

The fourth proportional to 215,510.24, 322,930.07 and 82,317.80 is: 123,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,510.24 : 322,930.07 = 82,317.80 : x
  2. Step 2: Convert to fraction form
    215,510.24/322,930.07 = 82,317.80/x
  3. Step 3: Cross multiply
    215,510.24x = 322,930.07 × 82,317.80
  4. Step 4: Simplify right side
    215,510.24x = 26,582,891,095.80
  5. Step 5: Solve for x
    x = 26,582,891,095.80/215,510.24
  6. Step 6: Final answer
    x = 123,348.62

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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.