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Finding the Fourth Proportional to 1,143.11, 1,715.04 and 363.24

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Solution

The fourth proportional to 1,143.11, 1,715.04 and 363.24 is: 544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.11 : 1,715.04 = 363.24 : x
  2. Step 2: Convert to fraction form
    1,143.11/1,715.04 = 363.24/x
  3. Step 3: Cross multiply
    1,143.11x = 1,715.04 × 363.24
  4. Step 4: Simplify right side
    1,143.11x = 622,971.13
  5. Step 5: Solve for x
    x = 622,971.13/1,143.11
  6. Step 6: Final answer
    x = 544.98

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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.