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Finding the Fourth Proportional to 222,069.60, 306,439.20 and 121,467.60

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Solution

The fourth proportional to 222,069.60, 306,439.20 and 121,467.60 is: 167,616.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,069.60 : 306,439.20 = 121,467.60 : x
  2. Step 2: Convert to fraction form
    222,069.60/306,439.20 = 121,467.60/x
  3. Step 3: Cross multiply
    222,069.60x = 306,439.20 × 121,467.60
  4. Step 4: Simplify right side
    222,069.60x = 37,222,434,169.92
  5. Step 5: Solve for x
    x = 37,222,434,169.92/222,069.60
  6. Step 6: Final answer
    x = 167,616.07

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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.