Home / 220,579.91-330,736.57-98,978.25

Finding the Fourth Proportional to 220,579.91, 330,736.57 and 98,978.25

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Solution

The fourth proportional to 220,579.91, 330,736.57 and 98,978.25 is: 148,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,579.91 : 330,736.57 = 98,978.25 : x
  2. Step 2: Convert to fraction form
    220,579.91/330,736.57 = 98,978.25/x
  3. Step 3: Cross multiply
    220,579.91x = 330,736.57 × 98,978.25
  4. Step 4: Simplify right side
    220,579.91x = 32,735,727,902.42
  5. Step 5: Solve for x
    x = 32,735,727,902.42/220,579.91
  6. Step 6: Final answer
    x = 148,407.57

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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.