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Finding the Fourth Proportional to 376.16, 520.32 and 294.08

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Solution

The fourth proportional to 376.16, 520.32 and 294.08 is: 406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.16 : 520.32 = 294.08 : x
  2. Step 2: Convert to fraction form
    376.16/520.32 = 294.08/x
  3. Step 3: Cross multiply
    376.16x = 520.32 × 294.08
  4. Step 4: Simplify right side
    376.16x = 153,015.71
  5. Step 5: Solve for x
    x = 153,015.71/376.16
  6. Step 6: Final answer
    x = 406.78

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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.