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Finding the Fourth Proportional to 222,108.66, 306,512.37 and 121,504.50

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Solution

The fourth proportional to 222,108.66, 306,512.37 and 121,504.50 is: 167,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,108.66 : 306,512.37 = 121,504.50 : x
  2. Step 2: Convert to fraction form
    222,108.66/306,512.37 = 121,504.50/x
  3. Step 3: Cross multiply
    222,108.66x = 306,512.37 × 121,504.50
  4. Step 4: Simplify right side
    222,108.66x = 37,242,632,260.67
  5. Step 5: Solve for x
    x = 37,242,632,260.67/222,108.66
  6. Step 6: Final answer
    x = 167,677.53

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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.