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Finding the Fourth Proportional to 266.17, 366.73 and 178.69

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Solution

The fourth proportional to 266.17, 366.73 and 178.69 is: 246.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.17 : 366.73 = 178.69 : x
  2. Step 2: Convert to fraction form
    266.17/366.73 = 178.69/x
  3. Step 3: Cross multiply
    266.17x = 366.73 × 178.69
  4. Step 4: Simplify right side
    266.17x = 65,528.26
  5. Step 5: Solve for x
    x = 65,528.26/266.17
  6. Step 6: Final answer
    x = 246.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.