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Finding the Fourth Proportional to 366.93, 550.40 and 123.42

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Solution

The fourth proportional to 366.93, 550.40 and 123.42 is: 185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.93 : 550.40 = 123.42 : x
  2. Step 2: Convert to fraction form
    366.93/550.40 = 123.42/x
  3. Step 3: Cross multiply
    366.93x = 550.40 × 123.42
  4. Step 4: Simplify right side
    366.93x = 67,931.81
  5. Step 5: Solve for x
    x = 67,931.81/366.93
  6. Step 6: Final answer
    x = 185.14

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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.