Home / 204,189.47-306,298.79-54,428.97

Finding the Fourth Proportional to 204,189.47, 306,298.79 and 54,428.97

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Solution

The fourth proportional to 204,189.47, 306,298.79 and 54,428.97 is: 81,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,189.47 : 306,298.79 = 54,428.97 : x
  2. Step 2: Convert to fraction form
    204,189.47/306,298.79 = 54,428.97/x
  3. Step 3: Cross multiply
    204,189.47x = 306,298.79 × 54,428.97
  4. Step 4: Simplify right side
    204,189.47x = 16,671,527,651.95
  5. Step 5: Solve for x
    x = 16,671,527,651.95/204,189.47
  6. Step 6: Final answer
    x = 81,647.34

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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.