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Finding the Fourth Proportional to 377.12, 565.55 and 194.49

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Solution

The fourth proportional to 377.12, 565.55 and 194.49 is: 291.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.12 : 565.55 = 194.49 : x
  2. Step 2: Convert to fraction form
    377.12/565.55 = 194.49/x
  3. Step 3: Cross multiply
    377.12x = 565.55 × 194.49
  4. Step 4: Simplify right side
    377.12x = 109,992.85
  5. Step 5: Solve for x
    x = 109,992.85/377.12
  6. Step 6: Final answer
    x = 291.67

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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.