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Finding the Fourth Proportional to 325,704.80, 449,480.40 and 218,201.60

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Solution

The fourth proportional to 325,704.80, 449,480.40 and 218,201.60 is: 301,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,704.80 : 449,480.40 = 218,201.60 : x
  2. Step 2: Convert to fraction form
    325,704.80/449,480.40 = 218,201.60/x
  3. Step 3: Cross multiply
    325,704.80x = 449,480.40 × 218,201.60
  4. Step 4: Simplify right side
    325,704.80x = 98,077,342,448.64
  5. Step 5: Solve for x
    x = 98,077,342,448.64/325,704.80
  6. Step 6: Final answer
    x = 301,123.42

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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.