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Finding the Fourth Proportional to 220,413.15, 304,171.61 and 124,921.44

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Solution

The fourth proportional to 220,413.15, 304,171.61 and 124,921.44 is: 172,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,413.15 : 304,171.61 = 124,921.44 : x
  2. Step 2: Convert to fraction form
    220,413.15/304,171.61 = 124,921.44/x
  3. Step 3: Cross multiply
    220,413.15x = 304,171.61 × 124,921.44
  4. Step 4: Simplify right side
    220,413.15x = 37,997,554,903.71
  5. Step 5: Solve for x
    x = 37,997,554,903.71/220,413.15
  6. Step 6: Final answer
    x = 172,392.41

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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.