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Finding the Fourth Proportional to 223,419.97, 308,325.49 and 121,452.31

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Solution

The fourth proportional to 223,419.97, 308,325.49 and 121,452.31 is: 167,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,419.97 : 308,325.49 = 121,452.31 : x
  2. Step 2: Convert to fraction form
    223,419.97/308,325.49 = 121,452.31/x
  3. Step 3: Cross multiply
    223,419.97x = 308,325.49 × 121,452.31
  4. Step 4: Simplify right side
    223,419.97x = 37,446,843,074.16
  5. Step 5: Solve for x
    x = 37,446,843,074.16/223,419.97
  6. Step 6: Final answer
    x = 167,607.41

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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.