Home / 400,979.38-553,265.43-237,687.37

Finding the Fourth Proportional to 400,979.38, 553,265.43 and 237,687.37

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Solution

The fourth proportional to 400,979.38, 553,265.43 and 237,687.37 is: 327,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,979.38 : 553,265.43 = 237,687.37 : x
  2. Step 2: Convert to fraction form
    400,979.38/553,265.43 = 237,687.37/x
  3. Step 3: Cross multiply
    400,979.38x = 553,265.43 × 237,687.37
  4. Step 4: Simplify right side
    400,979.38x = 131,504,204,968.62
  5. Step 5: Solve for x
    x = 131,504,204,968.62/400,979.38
  6. Step 6: Final answer
    x = 327,957.52

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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.