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Finding the Fourth Proportional to 233.88, 350.91 and 87.62

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Solution

The fourth proportional to 233.88, 350.91 and 87.62 is: 131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.88 : 350.91 = 87.62 : x
  2. Step 2: Convert to fraction form
    233.88/350.91 = 87.62/x
  3. Step 3: Cross multiply
    233.88x = 350.91 × 87.62
  4. Step 4: Simplify right side
    233.88x = 30,746.73
  5. Step 5: Solve for x
    x = 30,746.73/233.88
  6. Step 6: Final answer
    x = 131.46

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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.