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Finding the Fourth Proportional to 575.82, 863.88 and 185.82

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Solution

The fourth proportional to 575.82, 863.88 and 185.82 is: 278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.82 : 863.88 = 185.82 : x
  2. Step 2: Convert to fraction form
    575.82/863.88 = 185.82/x
  3. Step 3: Cross multiply
    575.82x = 863.88 × 185.82
  4. Step 4: Simplify right side
    575.82x = 160,526.18
  5. Step 5: Solve for x
    x = 160,526.18/575.82
  6. Step 6: Final answer
    x = 278.78

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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.