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Finding the Fourth Proportional to 175.01, 262.37 and 72.20

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Solution

The fourth proportional to 175.01, 262.37 and 72.20 is: 108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.01 : 262.37 = 72.20 : x
  2. Step 2: Convert to fraction form
    175.01/262.37 = 72.20/x
  3. Step 3: Cross multiply
    175.01x = 262.37 × 72.20
  4. Step 4: Simplify right side
    175.01x = 18,941.44
  5. Step 5: Solve for x
    x = 18,941.44/175.01
  6. Step 6: Final answer
    x = 108.23

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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.