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Finding the Fourth Proportional to 1,143.99, 1,716.18 and 364.18

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Solution

The fourth proportional to 1,143.99, 1,716.18 and 364.18 is: 546.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.99 : 1,716.18 = 364.18 : x
  2. Step 2: Convert to fraction form
    1,143.99/1,716.18 = 364.18/x
  3. Step 3: Cross multiply
    1,143.99x = 1,716.18 × 364.18
  4. Step 4: Simplify right side
    1,143.99x = 624,998.43
  5. Step 5: Solve for x
    x = 624,998.43/1,143.99
  6. Step 6: Final answer
    x = 546.33

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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.