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Finding the Fourth Proportional to 177.72, 266.94 and 175.20

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Solution

The fourth proportional to 177.72, 266.94 and 175.20 is: 263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.72 : 266.94 = 175.20 : x
  2. Step 2: Convert to fraction form
    177.72/266.94 = 175.20/x
  3. Step 3: Cross multiply
    177.72x = 266.94 × 175.20
  4. Step 4: Simplify right side
    177.72x = 46,767.89
  5. Step 5: Solve for x
    x = 46,767.89/177.72
  6. Step 6: Final answer
    x = 263.15

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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.