Home / 220,982.91-331,618.91-121,213.34

Finding the Fourth Proportional to 220,982.91, 331,618.91 and 121,213.34

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Solution

The fourth proportional to 220,982.91, 331,618.91 and 121,213.34 is: 181,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,982.91 : 331,618.91 = 121,213.34 : x
  2. Step 2: Convert to fraction form
    220,982.91/331,618.91 = 121,213.34/x
  3. Step 3: Cross multiply
    220,982.91x = 331,618.91 × 121,213.34
  4. Step 4: Simplify right side
    220,982.91x = 40,196,634,416.82
  5. Step 5: Solve for x
    x = 40,196,634,416.82/220,982.91
  6. Step 6: Final answer
    x = 181,899.29

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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.