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Finding the Fourth Proportional to 376.33, 517.61 and 302.48

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Solution

The fourth proportional to 376.33, 517.61 and 302.48 is: 416.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.33 : 517.61 = 302.48 : x
  2. Step 2: Convert to fraction form
    376.33/517.61 = 302.48/x
  3. Step 3: Cross multiply
    376.33x = 517.61 × 302.48
  4. Step 4: Simplify right side
    376.33x = 156,565.16
  5. Step 5: Solve for x
    x = 156,565.16/376.33
  6. Step 6: Final answer
    x = 416.04

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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.