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Finding the Fourth Proportional to 266.72, 367.84 and 183.68

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Solution

The fourth proportional to 266.72, 367.84 and 183.68 is: 253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.72 : 367.84 = 183.68 : x
  2. Step 2: Convert to fraction form
    266.72/367.84 = 183.68/x
  3. Step 3: Cross multiply
    266.72x = 367.84 × 183.68
  4. Step 4: Simplify right side
    266.72x = 67,564.85
  5. Step 5: Solve for x
    x = 67,564.85/266.72
  6. Step 6: Final answer
    x = 253.32

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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.