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Finding the Fourth Proportional to 462.68, 694.22 and 355.16

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Solution

The fourth proportional to 462.68, 694.22 and 355.16 is: 532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.68 : 694.22 = 355.16 : x
  2. Step 2: Convert to fraction form
    462.68/694.22 = 355.16/x
  3. Step 3: Cross multiply
    462.68x = 694.22 × 355.16
  4. Step 4: Simplify right side
    462.68x = 246,559.18
  5. Step 5: Solve for x
    x = 246,559.18/462.68
  6. Step 6: Final answer
    x = 532.89

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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.