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Finding the Fourth Proportional to 173.57, 236.31 and 173.03

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Solution

The fourth proportional to 173.57, 236.31 and 173.03 is: 235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.57 : 236.31 = 173.03 : x
  2. Step 2: Convert to fraction form
    173.57/236.31 = 173.03/x
  3. Step 3: Cross multiply
    173.57x = 236.31 × 173.03
  4. Step 4: Simplify right side
    173.57x = 40,887.54
  5. Step 5: Solve for x
    x = 40,887.54/173.57
  6. Step 6: Final answer
    x = 235.57

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.