Home / 250,279.45-345,394.25-137,102.20

Finding the Fourth Proportional to 250,279.45, 345,394.25 and 137,102.20

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Solution

The fourth proportional to 250,279.45, 345,394.25 and 137,102.20 is: 189,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,279.45 : 345,394.25 = 137,102.20 : x
  2. Step 2: Convert to fraction form
    250,279.45/345,394.25 = 137,102.20/x
  3. Step 3: Cross multiply
    250,279.45x = 345,394.25 × 137,102.20
  4. Step 4: Simplify right side
    250,279.45x = 47,354,311,542.35
  5. Step 5: Solve for x
    x = 47,354,311,542.35/250,279.45
  6. Step 6: Final answer
    x = 189,205.75

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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.