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Finding the Fourth Proportional to 198,065, 273,329.84 and 107,420.92

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Solution

The fourth proportional to 198,065, 273,329.84 and 107,420.92 is: 148,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,065 : 273,329.84 = 107,420.92 : x
  2. Step 2: Convert to fraction form
    198,065/273,329.84 = 107,420.92/x
  3. Step 3: Cross multiply
    198,065x = 273,329.84 × 107,420.92
  4. Step 4: Simplify right side
    198,065x = 29,361,342,876.25
  5. Step 5: Solve for x
    x = 29,361,342,876.25/198,065
  6. Step 6: Final answer
    x = 148,240.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.