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Finding the Fourth Proportional to 377.11, 565.60 and 133.59

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Solution

The fourth proportional to 377.11, 565.60 and 133.59 is: 200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.11 : 565.60 = 133.59 : x
  2. Step 2: Convert to fraction form
    377.11/565.60 = 133.59/x
  3. Step 3: Cross multiply
    377.11x = 565.60 × 133.59
  4. Step 4: Simplify right side
    377.11x = 75,558.50
  5. Step 5: Solve for x
    x = 75,558.50/377.11
  6. Step 6: Final answer
    x = 200.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.