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Finding the Fourth Proportional to 377.26, 564.98 and 214.45

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Solution

The fourth proportional to 377.26, 564.98 and 214.45 is: 321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.26 : 564.98 = 214.45 : x
  2. Step 2: Convert to fraction form
    377.26/564.98 = 214.45/x
  3. Step 3: Cross multiply
    377.26x = 564.98 × 214.45
  4. Step 4: Simplify right side
    377.26x = 121,157.48
  5. Step 5: Solve for x
    x = 121,157.48/377.26
  6. Step 6: Final answer
    x = 321.15

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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.