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Finding the Fourth Proportional to 303,690.96, 455,538.06 and 199,171.80

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Solution

The fourth proportional to 303,690.96, 455,538.06 and 199,171.80 is: 298,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,690.96 : 455,538.06 = 199,171.80 : x
  2. Step 2: Convert to fraction form
    303,690.96/455,538.06 = 199,171.80/x
  3. Step 3: Cross multiply
    303,690.96x = 455,538.06 × 199,171.80
  4. Step 4: Simplify right side
    303,690.96x = 90,730,335,378.71
  5. Step 5: Solve for x
    x = 90,730,335,378.71/303,690.96
  6. Step 6: Final answer
    x = 298,758.76

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1.5x scale

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.