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Finding the Fourth Proportional to 376.96, 565.12 and 248.64

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Solution

The fourth proportional to 376.96, 565.12 and 248.64 is: 372.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.96 : 565.12 = 248.64 : x
  2. Step 2: Convert to fraction form
    376.96/565.12 = 248.64/x
  3. Step 3: Cross multiply
    376.96x = 565.12 × 248.64
  4. Step 4: Simplify right side
    376.96x = 140,511.44
  5. Step 5: Solve for x
    x = 140,511.44/376.96
  6. Step 6: Final answer
    x = 372.75

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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.