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Finding the Fourth Proportional to 463.98, 693.90 and 382.17

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Solution

The fourth proportional to 463.98, 693.90 and 382.17 is: 571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.98 : 693.90 = 382.17 : x
  2. Step 2: Convert to fraction form
    463.98/693.90 = 382.17/x
  3. Step 3: Cross multiply
    463.98x = 693.90 × 382.17
  4. Step 4: Simplify right side
    463.98x = 265,187.76
  5. Step 5: Solve for x
    x = 265,187.76/463.98
  6. Step 6: Final answer
    x = 571.55

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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.