Home / 222,091.36-306,486.48-121,489.36

Finding the Fourth Proportional to 222,091.36, 306,486.48 and 121,489.36

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Solution

The fourth proportional to 222,091.36, 306,486.48 and 121,489.36 is: 167,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,091.36 : 306,486.48 = 121,489.36 : x
  2. Step 2: Convert to fraction form
    222,091.36/306,486.48 = 121,489.36/x
  3. Step 3: Cross multiply
    222,091.36x = 306,486.48 × 121,489.36
  4. Step 4: Simplify right side
    222,091.36x = 37,234,846,303.85
  5. Step 5: Solve for x
    x = 37,234,846,303.85/222,091.36
  6. Step 6: Final answer
    x = 167,655.54

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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.