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Finding the Fourth Proportional to 219,750, 329,608.44 and 69,984.24

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Solution

The fourth proportional to 219,750, 329,608.44 and 69,984.24 is: 104,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,750 : 329,608.44 = 69,984.24 : x
  2. Step 2: Convert to fraction form
    219,750/329,608.44 = 69,984.24/x
  3. Step 3: Cross multiply
    219,750x = 329,608.44 × 69,984.24
  4. Step 4: Simplify right side
    219,750x = 23,067,396,170.99
  5. Step 5: Solve for x
    x = 23,067,396,170.99/219,750
  6. Step 6: Final answer
    x = 104,971.09

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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.