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Finding the Fourth Proportional to 377.55, 564.82 and 326.75

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Solution

The fourth proportional to 377.55, 564.82 and 326.75 is: 488.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.55 : 564.82 = 326.75 : x
  2. Step 2: Convert to fraction form
    377.55/564.82 = 326.75/x
  3. Step 3: Cross multiply
    377.55x = 564.82 × 326.75
  4. Step 4: Simplify right side
    377.55x = 184,551.29
  5. Step 5: Solve for x
    x = 184,551.29/377.55
  6. Step 6: Final answer
    x = 488.81

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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.