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Finding the Fourth Proportional to 377.96, 521.62 and 230.69

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Solution

The fourth proportional to 377.96, 521.62 and 230.69 is: 318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.96 : 521.62 = 230.69 : x
  2. Step 2: Convert to fraction form
    377.96/521.62 = 230.69/x
  3. Step 3: Cross multiply
    377.96x = 521.62 × 230.69
  4. Step 4: Simplify right side
    377.96x = 120,334.40
  5. Step 5: Solve for x
    x = 120,334.40/377.96
  6. Step 6: Final answer
    x = 318.38

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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.