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Finding the Fourth Proportional to 176.64, 266.05 and 136.33

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Solution

The fourth proportional to 176.64, 266.05 and 136.33 is: 205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.64 : 266.05 = 136.33 : x
  2. Step 2: Convert to fraction form
    176.64/266.05 = 136.33/x
  3. Step 3: Cross multiply
    176.64x = 266.05 × 136.33
  4. Step 4: Simplify right side
    176.64x = 36,270.60
  5. Step 5: Solve for x
    x = 36,270.60/176.64
  6. Step 6: Final answer
    x = 205.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.