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Finding the Fourth Proportional to 235,355.46, 352,922.31 and 85,490.07

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Solution

The fourth proportional to 235,355.46, 352,922.31 and 85,490.07 is: 128,194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,355.46 : 352,922.31 = 85,490.07 : x
  2. Step 2: Convert to fraction form
    235,355.46/352,922.31 = 85,490.07/x
  3. Step 3: Cross multiply
    235,355.46x = 352,922.31 × 85,490.07
  4. Step 4: Simplify right side
    235,355.46x = 30,171,352,986.46
  5. Step 5: Solve for x
    x = 30,171,352,986.46/235,355.46
  6. Step 6: Final answer
    x = 128,194.83

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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.