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Finding the Fourth Proportional to 233.80, 352.03 and 219.40

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Solution

The fourth proportional to 233.80, 352.03 and 219.40 is: 330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.80 : 352.03 = 219.40 : x
  2. Step 2: Convert to fraction form
    233.80/352.03 = 219.40/x
  3. Step 3: Cross multiply
    233.80x = 352.03 × 219.40
  4. Step 4: Simplify right side
    233.80x = 77,235.38
  5. Step 5: Solve for x
    x = 77,235.38/233.80
  6. Step 6: Final answer
    x = 330.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.