Home / 224,291.13-309,521.70-123,689.13

Finding the Fourth Proportional to 224,291.13, 309,521.70 and 123,689.13

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Solution

The fourth proportional to 224,291.13, 309,521.70 and 123,689.13 is: 170,690.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,291.13 : 309,521.70 = 123,689.13 : x
  2. Step 2: Convert to fraction form
    224,291.13/309,521.70 = 123,689.13/x
  3. Step 3: Cross multiply
    224,291.13x = 309,521.70 × 123,689.13
  4. Step 4: Simplify right side
    224,291.13x = 38,284,469,789.12
  5. Step 5: Solve for x
    x = 38,284,469,789.12/224,291.13
  6. Step 6: Final answer
    x = 170,690.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.