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Finding the Fourth Proportional to 176.92, 265.08 and 172.67

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Solution

The fourth proportional to 176.92, 265.08 and 172.67 is: 258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.92 : 265.08 = 172.67 : x
  2. Step 2: Convert to fraction form
    176.92/265.08 = 172.67/x
  3. Step 3: Cross multiply
    176.92x = 265.08 × 172.67
  4. Step 4: Simplify right side
    176.92x = 45,771.36
  5. Step 5: Solve for x
    x = 45,771.36/176.92
  6. Step 6: Final answer
    x = 258.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.