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Finding the Fourth Proportional to 222,061, 306,449.04 and 121,459

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Solution

The fourth proportional to 222,061, 306,449.04 and 121,459 is: 167,616.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,061 : 306,449.04 = 121,459 : x
  2. Step 2: Convert to fraction form
    222,061/306,449.04 = 121,459/x
  3. Step 3: Cross multiply
    222,061x = 306,449.04 × 121,459
  4. Step 4: Simplify right side
    222,061x = 37,220,993,949.36
  5. Step 5: Solve for x
    x = 37,220,993,949.36/222,061
  6. Step 6: Final answer
    x = 167,616.08

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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.