Home / 222,279.12-306,736.20-121,677.12

Finding the Fourth Proportional to 222,279.12, 306,736.20 and 121,677.12

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Solution

The fourth proportional to 222,279.12, 306,736.20 and 121,677.12 is: 167,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,279.12 : 306,736.20 = 121,677.12 : x
  2. Step 2: Convert to fraction form
    222,279.12/306,736.20 = 121,677.12/x
  3. Step 3: Cross multiply
    222,279.12x = 306,736.20 × 121,677.12
  4. Step 4: Simplify right side
    222,279.12x = 37,322,777,415.74
  5. Step 5: Solve for x
    x = 37,322,777,415.74/222,279.12
  6. Step 6: Final answer
    x = 167,909.51

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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.