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Finding the Fourth Proportional to 1,149.69, 1,724.27 and 327.77

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Solution

The fourth proportional to 1,149.69, 1,724.27 and 327.77 is: 491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.69 : 1,724.27 = 327.77 : x
  2. Step 2: Convert to fraction form
    1,149.69/1,724.27 = 327.77/x
  3. Step 3: Cross multiply
    1,149.69x = 1,724.27 × 327.77
  4. Step 4: Simplify right side
    1,149.69x = 565,156.18
  5. Step 5: Solve for x
    x = 565,156.18/1,149.69
  6. Step 6: Final answer
    x = 491.57

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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.