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Finding the Fourth Proportional to 571.88, 857.81 and 229.88

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Solution

The fourth proportional to 571.88, 857.81 and 229.88 is: 344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.88 : 857.81 = 229.88 : x
  2. Step 2: Convert to fraction form
    571.88/857.81 = 229.88/x
  3. Step 3: Cross multiply
    571.88x = 857.81 × 229.88
  4. Step 4: Simplify right side
    571.88x = 197,189.65
  5. Step 5: Solve for x
    x = 197,189.65/571.88
  6. Step 6: Final answer
    x = 344.81

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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.