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Finding the Fourth Proportional to 563.46, 844.61 and 216.70

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Solution

The fourth proportional to 563.46, 844.61 and 216.70 is: 324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.46 : 844.61 = 216.70 : x
  2. Step 2: Convert to fraction form
    563.46/844.61 = 216.70/x
  3. Step 3: Cross multiply
    563.46x = 844.61 × 216.70
  4. Step 4: Simplify right side
    563.46x = 183,021.68
  5. Step 5: Solve for x
    x = 183,021.68/563.46
  6. Step 6: Final answer
    x = 324.82

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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.