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Finding the Fourth Proportional to 266.45, 367.66 and 152.89

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Solution

The fourth proportional to 266.45, 367.66 and 152.89 is: 210.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.45 : 367.66 = 152.89 : x
  2. Step 2: Convert to fraction form
    266.45/367.66 = 152.89/x
  3. Step 3: Cross multiply
    266.45x = 367.66 × 152.89
  4. Step 4: Simplify right side
    266.45x = 56,211.54
  5. Step 5: Solve for x
    x = 56,211.54/266.45
  6. Step 6: Final answer
    x = 210.96

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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.