Home / 224,000.85-309,121.03-123,398.85

Finding the Fourth Proportional to 224,000.85, 309,121.03 and 123,398.85

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Solution

The fourth proportional to 224,000.85, 309,121.03 and 123,398.85 is: 170,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,000.85 : 309,121.03 = 123,398.85 : x
  2. Step 2: Convert to fraction form
    224,000.85/309,121.03 = 123,398.85/x
  3. Step 3: Cross multiply
    224,000.85x = 309,121.03 × 123,398.85
  4. Step 4: Simplify right side
    224,000.85x = 38,145,179,612.82
  5. Step 5: Solve for x
    x = 38,145,179,612.82/224,000.85
  6. Step 6: Final answer
    x = 170,290.33

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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.