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Finding the Fourth Proportional to 222,119.64, 306,525.30 and 121,517.64

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Solution

The fourth proportional to 222,119.64, 306,525.30 and 121,517.64 is: 167,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,119.64 : 306,525.30 = 121,517.64 : x
  2. Step 2: Convert to fraction form
    222,119.64/306,525.30 = 121,517.64/x
  3. Step 3: Cross multiply
    222,119.64x = 306,525.30 × 121,517.64
  4. Step 4: Simplify right side
    222,119.64x = 37,248,231,056.29
  5. Step 5: Solve for x
    x = 37,248,231,056.29/222,119.64
  6. Step 6: Final answer
    x = 167,694.45

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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.