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Finding the Fourth Proportional to 175.77, 262.96 and 153.21

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Solution

The fourth proportional to 175.77, 262.96 and 153.21 is: 229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.77 : 262.96 = 153.21 : x
  2. Step 2: Convert to fraction form
    175.77/262.96 = 153.21/x
  3. Step 3: Cross multiply
    175.77x = 262.96 × 153.21
  4. Step 4: Simplify right side
    175.77x = 40,288.10
  5. Step 5: Solve for x
    x = 40,288.10/175.77
  6. Step 6: Final answer
    x = 229.21

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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.