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Finding the Fourth Proportional to 377.88, 561.87 and 363.30

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Solution

The fourth proportional to 377.88, 561.87 and 363.30 is: 540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.88 : 561.87 = 363.30 : x
  2. Step 2: Convert to fraction form
    377.88/561.87 = 363.30/x
  3. Step 3: Cross multiply
    377.88x = 561.87 × 363.30
  4. Step 4: Simplify right side
    377.88x = 204,127.37
  5. Step 5: Solve for x
    x = 204,127.37/377.88
  6. Step 6: Final answer
    x = 540.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.