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Finding the Fourth Proportional to 238,310.58, 357,517.31 and 80,535.54

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Solution

The fourth proportional to 238,310.58, 357,517.31 and 80,535.54 is: 120,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,310.58 : 357,517.31 = 80,535.54 : x
  2. Step 2: Convert to fraction form
    238,310.58/357,517.31 = 80,535.54/x
  3. Step 3: Cross multiply
    238,310.58x = 357,517.31 × 80,535.54
  4. Step 4: Simplify right side
    238,310.58x = 28,792,849,217.52
  5. Step 5: Solve for x
    x = 28,792,849,217.52/238,310.58
  6. Step 6: Final answer
    x = 120,820.69

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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.