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Finding the Fourth Proportional to 223,622.73, 308,600.73 and 121,649.13

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Solution

The fourth proportional to 223,622.73, 308,600.73 and 121,649.13 is: 167,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,622.73 : 308,600.73 = 121,649.13 : x
  2. Step 2: Convert to fraction form
    223,622.73/308,600.73 = 121,649.13/x
  3. Step 3: Cross multiply
    223,622.73x = 308,600.73 × 121,649.13
  4. Step 4: Simplify right side
    223,622.73x = 37,541,010,321.86
  5. Step 5: Solve for x
    x = 37,541,010,321.86/223,622.73
  6. Step 6: Final answer
    x = 167,876.54

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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.