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Finding the Fourth Proportional to 377, 520.08 and 229.56

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Solution

The fourth proportional to 377, 520.08 and 229.56 is: 316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377 : 520.08 = 229.56 : x
  2. Step 2: Convert to fraction form
    377/520.08 = 229.56/x
  3. Step 3: Cross multiply
    377x = 520.08 × 229.56
  4. Step 4: Simplify right side
    377x = 119,389.56
  5. Step 5: Solve for x
    x = 119,389.56/377
  6. Step 6: Final answer
    x = 316.68

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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.