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Finding the Fourth Proportional to 222,427.34, 306,949.74 and 121,825.34

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Solution

The fourth proportional to 222,427.34, 306,949.74 and 121,825.34 is: 168,118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,427.34 : 306,949.74 = 121,825.34 : x
  2. Step 2: Convert to fraction form
    222,427.34/306,949.74 = 121,825.34/x
  3. Step 3: Cross multiply
    222,427.34x = 306,949.74 × 121,825.34
  4. Step 4: Simplify right side
    222,427.34x = 37,394,256,438.41
  5. Step 5: Solve for x
    x = 37,394,256,438.41/222,427.34
  6. Step 6: Final answer
    x = 168,118.98

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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.