Home / 220,238.82-330,380.01-70,441.47

Finding the Fourth Proportional to 220,238.82, 330,380.01 and 70,441.47

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Solution

The fourth proportional to 220,238.82, 330,380.01 and 70,441.47 is: 105,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,238.82 : 330,380.01 = 70,441.47 : x
  2. Step 2: Convert to fraction form
    220,238.82/330,380.01 = 70,441.47/x
  3. Step 3: Cross multiply
    220,238.82x = 330,380.01 × 70,441.47
  4. Step 4: Simplify right side
    220,238.82x = 23,272,453,563.01
  5. Step 5: Solve for x
    x = 23,272,453,563.01/220,238.82
  6. Step 6: Final answer
    x = 105,669.17

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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.