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Finding the Fourth Proportional to 1,241.00, 1,861.27 and 363.31

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Solution

The fourth proportional to 1,241.00, 1,861.27 and 363.31 is: 544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.00 : 1,861.27 = 363.31 : x
  2. Step 2: Convert to fraction form
    1,241.00/1,861.27 = 363.31/x
  3. Step 3: Cross multiply
    1,241.00x = 1,861.27 × 363.31
  4. Step 4: Simplify right side
    1,241.00x = 676,212.44
  5. Step 5: Solve for x
    x = 676,212.44/1,241.00
  6. Step 6: Final answer
    x = 544.89

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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.