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Finding the Fourth Proportional to 466.46, 643.78 and 270.04

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Solution

The fourth proportional to 466.46, 643.78 and 270.04 is: 372.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.46 : 643.78 = 270.04 : x
  2. Step 2: Convert to fraction form
    466.46/643.78 = 270.04/x
  3. Step 3: Cross multiply
    466.46x = 643.78 × 270.04
  4. Step 4: Simplify right side
    466.46x = 173,846.35
  5. Step 5: Solve for x
    x = 173,846.35/466.46
  6. Step 6: Final answer
    x = 372.69

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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.