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Finding the Fourth Proportional to 446.48, 615.98 and 271.88

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Solution

The fourth proportional to 446.48, 615.98 and 271.88 is: 375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.48 : 615.98 = 271.88 : x
  2. Step 2: Convert to fraction form
    446.48/615.98 = 271.88/x
  3. Step 3: Cross multiply
    446.48x = 615.98 × 271.88
  4. Step 4: Simplify right side
    446.48x = 167,472.64
  5. Step 5: Solve for x
    x = 167,472.64/446.48
  6. Step 6: Final answer
    x = 375.10

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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.