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Finding the Fourth Proportional to 377.16, 520.48 and 229.77

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Solution

The fourth proportional to 377.16, 520.48 and 229.77 is: 317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.16 : 520.48 = 229.77 : x
  2. Step 2: Convert to fraction form
    377.16/520.48 = 229.77/x
  3. Step 3: Cross multiply
    377.16x = 520.48 × 229.77
  4. Step 4: Simplify right side
    377.16x = 119,589.68
  5. Step 5: Solve for x
    x = 119,589.68/377.16
  6. Step 6: Final answer
    x = 317.08

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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.