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Finding the Fourth Proportional to 233.43, 350.38 and 172.38

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Solution

The fourth proportional to 233.43, 350.38 and 172.38 is: 258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.43 : 350.38 = 172.38 : x
  2. Step 2: Convert to fraction form
    233.43/350.38 = 172.38/x
  3. Step 3: Cross multiply
    233.43x = 350.38 × 172.38
  4. Step 4: Simplify right side
    233.43x = 60,397.09
  5. Step 5: Solve for x
    x = 60,397.09/233.43
  6. Step 6: Final answer
    x = 258.74

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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.