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Finding the Fourth Proportional to 1,144.36, 1,716.83 and 364.38

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Solution

The fourth proportional to 1,144.36, 1,716.83 and 364.38 is: 546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.36 : 1,716.83 = 364.38 : x
  2. Step 2: Convert to fraction form
    1,144.36/1,716.83 = 364.38/x
  3. Step 3: Cross multiply
    1,144.36x = 1,716.83 × 364.38
  4. Step 4: Simplify right side
    1,144.36x = 625,578.52
  5. Step 5: Solve for x
    x = 625,578.52/1,144.36
  6. Step 6: Final answer
    x = 546.66

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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.