Home / 209,220.32-313,812.66-82,826.20

Finding the Fourth Proportional to 209,220.32, 313,812.66 and 82,826.20

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Solution

The fourth proportional to 209,220.32, 313,812.66 and 82,826.20 is: 124,232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,220.32 : 313,812.66 = 82,826.20 : x
  2. Step 2: Convert to fraction form
    209,220.32/313,812.66 = 82,826.20/x
  3. Step 3: Cross multiply
    209,220.32x = 313,812.66 × 82,826.20
  4. Step 4: Simplify right side
    209,220.32x = 25,991,910,139.69
  5. Step 5: Solve for x
    x = 25,991,910,139.69/209,220.32
  6. Step 6: Final answer
    x = 124,232.25

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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.