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Finding the Fourth Proportional to 462.92, 695.06 and 219.62

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Solution

The fourth proportional to 462.92, 695.06 and 219.62 is: 329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.92 : 695.06 = 219.62 : x
  2. Step 2: Convert to fraction form
    462.92/695.06 = 219.62/x
  3. Step 3: Cross multiply
    462.92x = 695.06 × 219.62
  4. Step 4: Simplify right side
    462.92x = 152,644.50
  5. Step 5: Solve for x
    x = 152,644.50/462.92
  6. Step 6: Final answer
    x = 329.75

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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.