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Finding the Fourth Proportional to 233.50, 350.34 and 87.34

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Solution

The fourth proportional to 233.50, 350.34 and 87.34 is: 131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.50 : 350.34 = 87.34 : x
  2. Step 2: Convert to fraction form
    233.50/350.34 = 87.34/x
  3. Step 3: Cross multiply
    233.50x = 350.34 × 87.34
  4. Step 4: Simplify right side
    233.50x = 30,598.70
  5. Step 5: Solve for x
    x = 30,598.70/233.50
  6. Step 6: Final answer
    x = 131.04

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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.