Home / 250,286.44-345,403.92-137,109.20

Finding the Fourth Proportional to 250,286.44, 345,403.92 and 137,109.20

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Solution

The fourth proportional to 250,286.44, 345,403.92 and 137,109.20 is: 189,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,286.44 : 345,403.92 = 137,109.20 : x
  2. Step 2: Convert to fraction form
    250,286.44/345,403.92 = 137,109.20/x
  3. Step 3: Cross multiply
    250,286.44x = 345,403.92 × 137,109.20
  4. Step 4: Simplify right side
    250,286.44x = 47,358,055,148.06
  5. Step 5: Solve for x
    x = 47,358,055,148.06/250,286.44
  6. Step 6: Final answer
    x = 189,215.43

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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.