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Finding the Fourth Proportional to 220,857.76, 304,788.72 and 125,355.52

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Solution

The fourth proportional to 220,857.76, 304,788.72 and 125,355.52 is: 172,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,857.76 : 304,788.72 = 125,355.52 : x
  2. Step 2: Convert to fraction form
    220,857.76/304,788.72 = 125,355.52/x
  3. Step 3: Cross multiply
    220,857.76x = 304,788.72 × 125,355.52
  4. Step 4: Simplify right side
    220,857.76x = 38,206,948,485.73
  5. Step 5: Solve for x
    x = 38,206,948,485.73/220,857.76
  6. Step 6: Final answer
    x = 172,993.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.