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Finding the Fourth Proportional to 200,251.60, 275,871.90 and 139,712.20

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Solution

The fourth proportional to 200,251.60, 275,871.90 and 139,712.20 is: 192,471.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,251.60 : 275,871.90 = 139,712.20 : x
  2. Step 2: Convert to fraction form
    200,251.60/275,871.90 = 139,712.20/x
  3. Step 3: Cross multiply
    200,251.60x = 275,871.90 × 139,712.20
  4. Step 4: Simplify right side
    200,251.60x = 38,542,670,067.18
  5. Step 5: Solve for x
    x = 38,542,670,067.18/200,251.60
  6. Step 6: Final answer
    x = 192,471.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.