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Finding the Fourth Proportional to 377.15, 565.70 and 133.67

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Solution

The fourth proportional to 377.15, 565.70 and 133.67 is: 200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.15 : 565.70 = 133.67 : x
  2. Step 2: Convert to fraction form
    377.15/565.70 = 133.67/x
  3. Step 3: Cross multiply
    377.15x = 565.70 × 133.67
  4. Step 4: Simplify right side
    377.15x = 75,615.43
  5. Step 5: Solve for x
    x = 75,615.43/377.15
  6. Step 6: Final answer
    x = 200.49

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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.