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Finding the Fourth Proportional to 221,618.56, 332,427.72 and 55,406.56

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Solution

The fourth proportional to 221,618.56, 332,427.72 and 55,406.56 is: 83,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,618.56 : 332,427.72 = 55,406.56 : x
  2. Step 2: Convert to fraction form
    221,618.56/332,427.72 = 55,406.56/x
  3. Step 3: Cross multiply
    221,618.56x = 332,427.72 × 55,406.56
  4. Step 4: Simplify right side
    221,618.56x = 18,418,676,413.84
  5. Step 5: Solve for x
    x = 18,418,676,413.84/221,618.56
  6. Step 6: Final answer
    x = 83,109.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.