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Finding the Fourth Proportional to 274,036.27, 378,286.59 and 166,640.80

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Solution

The fourth proportional to 274,036.27, 378,286.59 and 166,640.80 is: 230,035.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,036.27 : 378,286.59 = 166,640.80 : x
  2. Step 2: Convert to fraction form
    274,036.27/378,286.59 = 166,640.80/x
  3. Step 3: Cross multiply
    274,036.27x = 378,286.59 × 166,640.80
  4. Step 4: Simplify right side
    274,036.27x = 63,037,979,986.87
  5. Step 5: Solve for x
    x = 63,037,979,986.87/274,036.27
  6. Step 6: Final answer
    x = 230,035.17

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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.