Home / 220,212.48-330,202.08-87,087.36

Finding the Fourth Proportional to 220,212.48, 330,202.08 and 87,087.36

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Solution

The fourth proportional to 220,212.48, 330,202.08 and 87,087.36 is: 130,584.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,212.48 : 330,202.08 = 87,087.36 : x
  2. Step 2: Convert to fraction form
    220,212.48/330,202.08 = 87,087.36/x
  3. Step 3: Cross multiply
    220,212.48x = 330,202.08 × 87,087.36
  4. Step 4: Simplify right side
    220,212.48x = 28,756,427,413.71
  5. Step 5: Solve for x
    x = 28,756,427,413.71/220,212.48
  6. Step 6: Final answer
    x = 130,584.91

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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.