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Finding the Fourth Proportional to 223,398.29, 308,289.65 and 122,796.29

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Solution

The fourth proportional to 223,398.29, 308,289.65 and 122,796.29 is: 169,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,398.29 : 308,289.65 = 122,796.29 : x
  2. Step 2: Convert to fraction form
    223,398.29/308,289.65 = 122,796.29/x
  3. Step 3: Cross multiply
    223,398.29x = 308,289.65 × 122,796.29
  4. Step 4: Simplify right side
    223,398.29x = 37,856,823,109.97
  5. Step 5: Solve for x
    x = 37,856,823,109.97/223,398.29
  6. Step 6: Final answer
    x = 169,458.88

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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.