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Finding the Third Proportional to 176.55 and 361.65

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Solution

The third proportional to 176.55 and 361.65 is: 740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.55 : 361.65 = 361.65 : x
  2. Step 2: Convert to fraction form
    176.55/361.65 = 361.65/x
  3. Step 3: Cross multiply
    176.55x = 361.65 × 361.65
  4. Step 4: Simplify right side
    176.55x = 130,792.42
  5. Step 5: Solve for x
    x = 130,792.42/176.55
  6. Step 6: Final answer
    x = 740.80

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.