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Finding the Fourth Proportional to 200,601.90, 300,708.45 and 82,115.10

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Solution

The fourth proportional to 200,601.90, 300,708.45 and 82,115.10 is: 123,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,601.90 : 300,708.45 = 82,115.10 : x
  2. Step 2: Convert to fraction form
    200,601.90/300,708.45 = 82,115.10/x
  3. Step 3: Cross multiply
    200,601.90x = 300,708.45 × 82,115.10
  4. Step 4: Simplify right side
    200,601.90x = 24,692,704,442.60
  5. Step 5: Solve for x
    x = 24,692,704,442.60/200,601.90
  6. Step 6: Final answer
    x = 123,093.07

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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.