Home / 220,414.62-330,427.89-87,388.26

Finding the Fourth Proportional to 220,414.62, 330,427.89 and 87,388.26

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Solution

The fourth proportional to 220,414.62, 330,427.89 and 87,388.26 is: 131,005.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,414.62 : 330,427.89 = 87,388.26 : x
  2. Step 2: Convert to fraction form
    220,414.62/330,427.89 = 87,388.26/x
  3. Step 3: Cross multiply
    220,414.62x = 330,427.89 × 87,388.26
  4. Step 4: Simplify right side
    220,414.62x = 28,875,518,362.57
  5. Step 5: Solve for x
    x = 28,875,518,362.57/220,414.62
  6. Step 6: Final answer
    x = 131,005.46

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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.