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Finding the Fourth Proportional to 214,727.60, 322,091.40 and 135,930.80

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Solution

The fourth proportional to 214,727.60, 322,091.40 and 135,930.80 is: 203,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,727.60 : 322,091.40 = 135,930.80 : x
  2. Step 2: Convert to fraction form
    214,727.60/322,091.40 = 135,930.80/x
  3. Step 3: Cross multiply
    214,727.60x = 322,091.40 × 135,930.80
  4. Step 4: Simplify right side
    214,727.60x = 43,782,141,675.12
  5. Step 5: Solve for x
    x = 43,782,141,675.12/214,727.60
  6. Step 6: Final answer
    x = 203,896.20

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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.