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Finding the Fourth Proportional to 223,273.88, 308,122.81 and 122,671.88

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Solution

The fourth proportional to 223,273.88, 308,122.81 and 122,671.88 is: 169,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,273.88 : 308,122.81 = 122,671.88 : x
  2. Step 2: Convert to fraction form
    223,273.88/308,122.81 = 122,671.88/x
  3. Step 3: Cross multiply
    223,273.88x = 308,122.81 × 122,671.88
  4. Step 4: Simplify right side
    223,273.88x = 37,798,002,526.29
  5. Step 5: Solve for x
    x = 37,798,002,526.29/223,273.88
  6. Step 6: Final answer
    x = 169,289.86

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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.