Home / 209,260.20-313,890.30-125,279.40

Finding the Fourth Proportional to 209,260.20, 313,890.30 and 125,279.40

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Solution

The fourth proportional to 209,260.20, 313,890.30 and 125,279.40 is: 187,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,260.20 : 313,890.30 = 125,279.40 : x
  2. Step 2: Convert to fraction form
    209,260.20/313,890.30 = 125,279.40/x
  3. Step 3: Cross multiply
    209,260.20x = 313,890.30 × 125,279.40
  4. Step 4: Simplify right side
    209,260.20x = 39,323,988,449.82
  5. Step 5: Solve for x
    x = 39,323,988,449.82/209,260.20
  6. Step 6: Final answer
    x = 187,919.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.