Home / 209,220.36-313,812.75-82,826.25

Finding the Fourth Proportional to 209,220.36, 313,812.75 and 82,826.25

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Solution

The fourth proportional to 209,220.36, 313,812.75 and 82,826.25 is: 124,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,220.36 : 313,812.75 = 82,826.25 : x
  2. Step 2: Convert to fraction form
    209,220.36/313,812.75 = 82,826.25/x
  3. Step 3: Cross multiply
    209,220.36x = 313,812.75 × 82,826.25
  4. Step 4: Simplify right side
    209,220.36x = 25,991,933,284.69
  5. Step 5: Solve for x
    x = 25,991,933,284.69/209,220.36
  6. Step 6: Final answer
    x = 124,232.33

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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.