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Finding the Fourth Proportional to 446.20, 615.76 and 271.52

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Solution

The fourth proportional to 446.20, 615.76 and 271.52 is: 374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.20 : 615.76 = 271.52 : x
  2. Step 2: Convert to fraction form
    446.20/615.76 = 271.52/x
  3. Step 3: Cross multiply
    446.20x = 615.76 × 271.52
  4. Step 4: Simplify right side
    446.20x = 167,191.16
  5. Step 5: Solve for x
    x = 167,191.16/446.20
  6. Step 6: Final answer
    x = 374.70

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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.