Home / 222,003.75-306,365.18-121,401.75

Finding the Fourth Proportional to 222,003.75, 306,365.18 and 121,401.75

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Solution

The fourth proportional to 222,003.75, 306,365.18 and 121,401.75 is: 167,534.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,003.75 : 306,365.18 = 121,401.75 : x
  2. Step 2: Convert to fraction form
    222,003.75/306,365.18 = 121,401.75/x
  3. Step 3: Cross multiply
    222,003.75x = 306,365.18 × 121,401.75
  4. Step 4: Simplify right side
    222,003.75x = 37,193,268,991.07
  5. Step 5: Solve for x
    x = 37,193,268,991.07/222,003.75
  6. Step 6: Final answer
    x = 167,534.42

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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.