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Finding the Fourth Proportional to 466.50, 643.78 and 269.94

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Solution

The fourth proportional to 466.50, 643.78 and 269.94 is: 372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.50 : 643.78 = 269.94 : x
  2. Step 2: Convert to fraction form
    466.50/643.78 = 269.94/x
  3. Step 3: Cross multiply
    466.50x = 643.78 × 269.94
  4. Step 4: Simplify right side
    466.50x = 173,781.97
  5. Step 5: Solve for x
    x = 173,781.97/466.50
  6. Step 6: Final answer
    x = 372.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.