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Finding the Fourth Proportional to 366.79, 550.23 and 123.49

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Solution

The fourth proportional to 366.79, 550.23 and 123.49 is: 185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.79 : 550.23 = 123.49 : x
  2. Step 2: Convert to fraction form
    366.79/550.23 = 123.49/x
  3. Step 3: Cross multiply
    366.79x = 550.23 × 123.49
  4. Step 4: Simplify right side
    366.79x = 67,947.90
  5. Step 5: Solve for x
    x = 67,947.90/366.79
  6. Step 6: Final answer
    x = 185.25

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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.