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Finding the Fourth Proportional to 376.48, 564.30 and 170.74

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Solution

The fourth proportional to 376.48, 564.30 and 170.74 is: 255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.48 : 564.30 = 170.74 : x
  2. Step 2: Convert to fraction form
    376.48/564.30 = 170.74/x
  3. Step 3: Cross multiply
    376.48x = 564.30 × 170.74
  4. Step 4: Simplify right side
    376.48x = 96,348.58
  5. Step 5: Solve for x
    x = 96,348.58/376.48
  6. Step 6: Final answer
    x = 255.92

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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.