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Finding the Fourth Proportional to 200,534.20, 300,801.30 and 82,290.40

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Solution

The fourth proportional to 200,534.20, 300,801.30 and 82,290.40 is: 123,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,534.20 : 300,801.30 = 82,290.40 : x
  2. Step 2: Convert to fraction form
    200,534.20/300,801.30 = 82,290.40/x
  3. Step 3: Cross multiply
    200,534.20x = 300,801.30 × 82,290.40
  4. Step 4: Simplify right side
    200,534.20x = 24,753,059,297.52
  5. Step 5: Solve for x
    x = 24,753,059,297.52/200,534.20
  6. Step 6: Final answer
    x = 123,435.60

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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.