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Finding the Fourth Proportional to 559.53, 771.66 and 363.11

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Solution

The fourth proportional to 559.53, 771.66 and 363.11 is: 500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.53 : 771.66 = 363.11 : x
  2. Step 2: Convert to fraction form
    559.53/771.66 = 363.11/x
  3. Step 3: Cross multiply
    559.53x = 771.66 × 363.11
  4. Step 4: Simplify right side
    559.53x = 280,193.60
  5. Step 5: Solve for x
    x = 280,193.60/559.53
  6. Step 6: Final answer
    x = 500.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.