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Finding the Fourth Proportional to 172.99, 237.26 and 171.46

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Solution

The fourth proportional to 172.99, 237.26 and 171.46 is: 235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172.99 : 237.26 = 171.46 : x
  2. Step 2: Convert to fraction form
    172.99/237.26 = 171.46/x
  3. Step 3: Cross multiply
    172.99x = 237.26 × 171.46
  4. Step 4: Simplify right side
    172.99x = 40,680.60
  5. Step 5: Solve for x
    x = 40,680.60/172.99
  6. Step 6: Final answer
    x = 235.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.