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Finding the Fourth Proportional to 233.80, 350.66 and 71.46

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Solution

The fourth proportional to 233.80, 350.66 and 71.46 is: 107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.80 : 350.66 = 71.46 : x
  2. Step 2: Convert to fraction form
    233.80/350.66 = 71.46/x
  3. Step 3: Cross multiply
    233.80x = 350.66 × 71.46
  4. Step 4: Simplify right side
    233.80x = 25,058.16
  5. Step 5: Solve for x
    x = 25,058.16/233.80
  6. Step 6: Final answer
    x = 107.18

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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.