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Finding the Fourth Proportional to 204,700.56, 306,992.52 and 129,707.52

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Solution

The fourth proportional to 204,700.56, 306,992.52 and 129,707.52 is: 194,524.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,700.56 : 306,992.52 = 129,707.52 : x
  2. Step 2: Convert to fraction form
    204,700.56/306,992.52 = 129,707.52/x
  3. Step 3: Cross multiply
    204,700.56x = 306,992.52 × 129,707.52
  4. Step 4: Simplify right side
    204,700.56x = 39,819,238,427.75
  5. Step 5: Solve for x
    x = 39,819,238,427.75/204,700.56
  6. Step 6: Final answer
    x = 194,524.33

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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.