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Finding the Fourth Proportional to 377.03, 520.16 and 229.61

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Solution

The fourth proportional to 377.03, 520.16 and 229.61 is: 316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.03 : 520.16 = 229.61 : x
  2. Step 2: Convert to fraction form
    377.03/520.16 = 229.61/x
  3. Step 3: Cross multiply
    377.03x = 520.16 × 229.61
  4. Step 4: Simplify right side
    377.03x = 119,434.09
  5. Step 5: Solve for x
    x = 119,434.09/377.03
  6. Step 6: Final answer
    x = 316.77

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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.