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Finding the Fourth Proportional to 204,078.80, 306,118.20 and 181,917.20

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Solution

The fourth proportional to 204,078.80, 306,118.20 and 181,917.20 is: 272,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,078.80 : 306,118.20 = 181,917.20 : x
  2. Step 2: Convert to fraction form
    204,078.80/306,118.20 = 181,917.20/x
  3. Step 3: Cross multiply
    204,078.80x = 306,118.20 × 181,917.20
  4. Step 4: Simplify right side
    204,078.80x = 55,688,165,813.04
  5. Step 5: Solve for x
    x = 55,688,165,813.04/204,078.80
  6. Step 6: Final answer
    x = 272,875.80

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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.