Home / 250,456.38-345,629.87-137,286.42

Finding the Fourth Proportional to 250,456.38, 345,629.87 and 137,286.42

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Solution

The fourth proportional to 250,456.38, 345,629.87 and 137,286.42 is: 189,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,456.38 : 345,629.87 = 137,286.42 : x
  2. Step 2: Convert to fraction form
    250,456.38/345,629.87 = 137,286.42/x
  3. Step 3: Cross multiply
    250,456.38x = 345,629.87 × 137,286.42
  4. Step 4: Simplify right side
    250,456.38x = 47,450,287,497.37
  5. Step 5: Solve for x
    x = 47,450,287,497.37/250,456.38
  6. Step 6: Final answer
    x = 189,455.30

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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.