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Finding the Fourth Proportional to 376.96, 519.04 and 294.40

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Solution

The fourth proportional to 376.96, 519.04 and 294.40 is: 405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.96 : 519.04 = 294.40 : x
  2. Step 2: Convert to fraction form
    376.96/519.04 = 294.40/x
  3. Step 3: Cross multiply
    376.96x = 519.04 × 294.40
  4. Step 4: Simplify right side
    376.96x = 152,805.38
  5. Step 5: Solve for x
    x = 152,805.38/376.96
  6. Step 6: Final answer
    x = 405.36

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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.