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Finding the Fourth Proportional to 576, 863.48 and 210.71

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Solution

The fourth proportional to 576, 863.48 and 210.71 is: 315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    576 : 863.48 = 210.71 : x
  2. Step 2: Convert to fraction form
    576/863.48 = 210.71/x
  3. Step 3: Cross multiply
    576x = 863.48 × 210.71
  4. Step 4: Simplify right side
    576x = 181,946.56
  5. Step 5: Solve for x
    x = 181,946.56/576
  6. Step 6: Final answer
    x = 315.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.