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Finding the Fourth Proportional to 571.49, 857.24 and 229.25

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Solution

The fourth proportional to 571.49, 857.24 and 229.25 is: 343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.49 : 857.24 = 229.25 : x
  2. Step 2: Convert to fraction form
    571.49/857.24 = 229.25/x
  3. Step 3: Cross multiply
    571.49x = 857.24 × 229.25
  4. Step 4: Simplify right side
    571.49x = 196,521.12
  5. Step 5: Solve for x
    x = 196,521.12/571.49
  6. Step 6: Final answer
    x = 343.88

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Double scale
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Similar ratio
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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.