Home / 222,213.38-306,655.07-121,611.38

Finding the Fourth Proportional to 222,213.38, 306,655.07 and 121,611.38

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Solution

The fourth proportional to 222,213.38, 306,655.07 and 121,611.38 is: 167,824.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,213.38 : 306,655.07 = 121,611.38 : x
  2. Step 2: Convert to fraction form
    222,213.38/306,655.07 = 121,611.38/x
  3. Step 3: Cross multiply
    222,213.38x = 306,655.07 × 121,611.38
  4. Step 4: Simplify right side
    222,213.38x = 37,292,744,105.36
  5. Step 5: Solve for x
    x = 37,292,744,105.36/222,213.38
  6. Step 6: Final answer
    x = 167,824.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.