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Finding the Fourth Proportional to 376.66, 564.72 and 214.12

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Solution

The fourth proportional to 376.66, 564.72 and 214.12 is: 321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.66 : 564.72 = 214.12 : x
  2. Step 2: Convert to fraction form
    376.66/564.72 = 214.12/x
  3. Step 3: Cross multiply
    376.66x = 564.72 × 214.12
  4. Step 4: Simplify right side
    376.66x = 120,917.85
  5. Step 5: Solve for x
    x = 120,917.85/376.66
  6. Step 6: Final answer
    x = 321.03

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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.