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Finding the Fourth Proportional to 220,413.83, 303,889.51 and 142,752.26

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Solution

The fourth proportional to 220,413.83, 303,889.51 and 142,752.26 is: 196,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,413.83 : 303,889.51 = 142,752.26 : x
  2. Step 2: Convert to fraction form
    220,413.83/303,889.51 = 142,752.26/x
  3. Step 3: Cross multiply
    220,413.83x = 303,889.51 × 142,752.26
  4. Step 4: Simplify right side
    220,413.83x = 43,380,914,388.76
  5. Step 5: Solve for x
    x = 43,380,914,388.76/220,413.83
  6. Step 6: Final answer
    x = 196,815.76

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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.