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Finding the Fourth Proportional to 233.87, 351.12 and 157.18

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Solution

The fourth proportional to 233.87, 351.12 and 157.18 is: 235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.87 : 351.12 = 157.18 : x
  2. Step 2: Convert to fraction form
    233.87/351.12 = 157.18/x
  3. Step 3: Cross multiply
    233.87x = 351.12 × 157.18
  4. Step 4: Simplify right side
    233.87x = 55,189.04
  5. Step 5: Solve for x
    x = 55,189.04/233.87
  6. Step 6: Final answer
    x = 235.98

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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.