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Finding the Fourth Proportional to 176.70, 255.68 and 176.70

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Solution

The fourth proportional to 176.70, 255.68 and 176.70 is: 255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.70 : 255.68 = 176.70 : x
  2. Step 2: Convert to fraction form
    176.70/255.68 = 176.70/x
  3. Step 3: Cross multiply
    176.70x = 255.68 × 176.70
  4. Step 4: Simplify right side
    176.70x = 45,177.77
  5. Step 5: Solve for x
    x = 45,177.77/176.70
  6. Step 6: Final answer
    x = 255.68

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.