Home / 220,223.08-330,383.84-70,472.36

Finding the Fourth Proportional to 220,223.08, 330,383.84 and 70,472.36

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Solution

The fourth proportional to 220,223.08, 330,383.84 and 70,472.36 is: 105,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,223.08 : 330,383.84 = 70,472.36 : x
  2. Step 2: Convert to fraction form
    220,223.08/330,383.84 = 70,472.36/x
  3. Step 3: Cross multiply
    220,223.08x = 330,383.84 × 70,472.36
  4. Step 4: Simplify right side
    220,223.08x = 23,282,928,910.66
  5. Step 5: Solve for x
    x = 23,282,928,910.66/220,223.08
  6. Step 6: Final answer
    x = 105,724.29

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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.