Home / 204,741.40-306,784.05-129,727.30

Finding the Fourth Proportional to 204,741.40, 306,784.05 and 129,727.30

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Solution

The fourth proportional to 204,741.40, 306,784.05 and 129,727.30 is: 194,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,741.40 : 306,784.05 = 129,727.30 : x
  2. Step 2: Convert to fraction form
    204,741.40/306,784.05 = 129,727.30/x
  3. Step 3: Cross multiply
    204,741.40x = 306,784.05 × 129,727.30
  4. Step 4: Simplify right side
    204,741.40x = 39,798,266,489.57
  5. Step 5: Solve for x
    x = 39,798,266,489.57/204,741.40
  6. Step 6: Final answer
    x = 194,383.09

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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.