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Finding the Fourth Proportional to 175.03, 262.53 and 66.79

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Solution

The fourth proportional to 175.03, 262.53 and 66.79 is: 100.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.03 : 262.53 = 66.79 : x
  2. Step 2: Convert to fraction form
    175.03/262.53 = 66.79/x
  3. Step 3: Cross multiply
    175.03x = 262.53 × 66.79
  4. Step 4: Simplify right side
    175.03x = 17,534.38
  5. Step 5: Solve for x
    x = 17,534.38/175.03
  6. Step 6: Final answer
    x = 100.18

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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.