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Finding the Fourth Proportional to 175.03, 262.59 and 66.76

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Solution

The fourth proportional to 175.03, 262.59 and 66.76 is: 100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.03 : 262.59 = 66.76 : x
  2. Step 2: Convert to fraction form
    175.03/262.59 = 66.76/x
  3. Step 3: Cross multiply
    175.03x = 262.59 × 66.76
  4. Step 4: Simplify right side
    175.03x = 17,529.60
  5. Step 5: Solve for x
    x = 17,529.60/175.03
  6. Step 6: Final answer
    x = 100.15

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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.