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Finding the Fourth Proportional to 176.02, 263.72 and 115.02

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Solution

The fourth proportional to 176.02, 263.72 and 115.02 is: 172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.02 : 263.72 = 115.02 : x
  2. Step 2: Convert to fraction form
    176.02/263.72 = 115.02/x
  3. Step 3: Cross multiply
    176.02x = 263.72 × 115.02
  4. Step 4: Simplify right side
    176.02x = 30,333.07
  5. Step 5: Solve for x
    x = 30,333.07/176.02
  6. Step 6: Final answer
    x = 172.33

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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.