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Finding the Fourth Proportional to 225,665.10, 338,919.27 and 198,657.02

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Solution

The fourth proportional to 225,665.10, 338,919.27 and 198,657.02 is: 298,356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,665.10 : 338,919.27 = 198,657.02 : x
  2. Step 2: Convert to fraction form
    225,665.10/338,919.27 = 198,657.02/x
  3. Step 3: Cross multiply
    225,665.10x = 338,919.27 × 198,657.02
  4. Step 4: Simplify right side
    225,665.10x = 67,328,689,510.89
  5. Step 5: Solve for x
    x = 67,328,689,510.89/225,665.10
  6. Step 6: Final answer
    x = 298,356.68

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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.