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Finding the Fourth Proportional to 466.27, 699.42 and 284.78

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Solution

The fourth proportional to 466.27, 699.42 and 284.78 is: 427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.27 : 699.42 = 284.78 : x
  2. Step 2: Convert to fraction form
    466.27/699.42 = 284.78/x
  3. Step 3: Cross multiply
    466.27x = 699.42 × 284.78
  4. Step 4: Simplify right side
    466.27x = 199,182.04
  5. Step 5: Solve for x
    x = 199,182.04/466.27
  6. Step 6: Final answer
    x = 427.18

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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.