Home / 222,005.75-306,367.94-121,403.75

Finding the Fourth Proportional to 222,005.75, 306,367.94 and 121,403.75

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Solution

The fourth proportional to 222,005.75, 306,367.94 and 121,403.75 is: 167,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,005.75 : 306,367.94 = 121,403.75 : x
  2. Step 2: Convert to fraction form
    222,005.75/306,367.94 = 121,403.75/x
  3. Step 3: Cross multiply
    222,005.75x = 306,367.94 × 121,403.75
  4. Step 4: Simplify right side
    222,005.75x = 37,194,216,795.78
  5. Step 5: Solve for x
    x = 37,194,216,795.78/222,005.75
  6. Step 6: Final answer
    x = 167,537.18

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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.