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Finding the Fourth Proportional to 303,708.96, 455,565.06 and 199,189.80

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Solution

The fourth proportional to 303,708.96, 455,565.06 and 199,189.80 is: 298,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,708.96 : 455,565.06 = 199,189.80 : x
  2. Step 2: Convert to fraction form
    303,708.96/455,565.06 = 199,189.80/x
  3. Step 3: Cross multiply
    303,708.96x = 455,565.06 × 199,189.80
  4. Step 4: Simplify right side
    303,708.96x = 90,743,913,188.39
  5. Step 5: Solve for x
    x = 90,743,913,188.39/303,708.96
  6. Step 6: Final answer
    x = 298,785.76

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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.