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Finding the Fourth Proportional to 176.68, 245.08 and 170.20

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Solution

The fourth proportional to 176.68, 245.08 and 170.20 is: 236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.68 : 245.08 = 170.20 : x
  2. Step 2: Convert to fraction form
    176.68/245.08 = 170.20/x
  3. Step 3: Cross multiply
    176.68x = 245.08 × 170.20
  4. Step 4: Simplify right side
    176.68x = 41,712.62
  5. Step 5: Solve for x
    x = 41,712.62/176.68
  6. Step 6: Final answer
    x = 236.09

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.