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Finding the Fourth Proportional to 259,645.56, 358,310.76 and 140,413.56

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Solution

The fourth proportional to 259,645.56, 358,310.76 and 140,413.56 is: 193,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,645.56 : 358,310.76 = 140,413.56 : x
  2. Step 2: Convert to fraction form
    259,645.56/358,310.76 = 140,413.56/x
  3. Step 3: Cross multiply
    259,645.56x = 358,310.76 × 140,413.56
  4. Step 4: Simplify right side
    259,645.56x = 50,311,689,397.91
  5. Step 5: Solve for x
    x = 50,311,689,397.91/259,645.56
  6. Step 6: Final answer
    x = 193,770.65

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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.