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Finding the Fourth Proportional to 200,043.60, 275,617.10 and 131,940.42

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Solution

The fourth proportional to 200,043.60, 275,617.10 and 131,940.42 is: 181,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,043.60 : 275,617.10 = 131,940.42 : x
  2. Step 2: Convert to fraction form
    200,043.60/275,617.10 = 131,940.42/x
  3. Step 3: Cross multiply
    200,043.60x = 275,617.10 × 131,940.42
  4. Step 4: Simplify right side
    200,043.60x = 36,365,035,933.18
  5. Step 5: Solve for x
    x = 36,365,035,933.18/200,043.60
  6. Step 6: Final answer
    x = 181,785.55

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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.