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Finding the Fourth Proportional to 541.34, 811.89 and 216.62

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Solution

The fourth proportional to 541.34, 811.89 and 216.62 is: 324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.34 : 811.89 = 216.62 : x
  2. Step 2: Convert to fraction form
    541.34/811.89 = 216.62/x
  3. Step 3: Cross multiply
    541.34x = 811.89 × 216.62
  4. Step 4: Simplify right side
    541.34x = 175,871.61
  5. Step 5: Solve for x
    x = 175,871.61/541.34
  6. Step 6: Final answer
    x = 324.88

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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.