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Finding the Fourth Proportional to 266.60, 367.89 and 148.56

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Solution

The fourth proportional to 266.60, 367.89 and 148.56 is: 205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.60 : 367.89 = 148.56 : x
  2. Step 2: Convert to fraction form
    266.60/367.89 = 148.56/x
  3. Step 3: Cross multiply
    266.60x = 367.89 × 148.56
  4. Step 4: Simplify right side
    266.60x = 54,653.74
  5. Step 5: Solve for x
    x = 54,653.74/266.60
  6. Step 6: Final answer
    x = 205.01

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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.