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Finding the Fourth Proportional to 235,414.20, 353,121.30 and 204,310.20

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Solution

The fourth proportional to 235,414.20, 353,121.30 and 204,310.20 is: 306,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,414.20 : 353,121.30 = 204,310.20 : x
  2. Step 2: Convert to fraction form
    235,414.20/353,121.30 = 204,310.20/x
  3. Step 3: Cross multiply
    235,414.20x = 353,121.30 × 204,310.20
  4. Step 4: Simplify right side
    235,414.20x = 72,146,283,427.26
  5. Step 5: Solve for x
    x = 72,146,283,427.26/235,414.20
  6. Step 6: Final answer
    x = 306,465.30

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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.