Home / 204,189.21-306,298.41-54,428.73

Finding the Fourth Proportional to 204,189.21, 306,298.41 and 54,428.73

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Solution

The fourth proportional to 204,189.21, 306,298.41 and 54,428.73 is: 81,646.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,189.21 : 306,298.41 = 54,428.73 : x
  2. Step 2: Convert to fraction form
    204,189.21/306,298.41 = 54,428.73/x
  3. Step 3: Cross multiply
    204,189.21x = 306,298.41 × 54,428.73
  4. Step 4: Simplify right side
    204,189.21x = 16,671,433,457.32
  5. Step 5: Solve for x
    x = 16,671,433,457.32/204,189.21
  6. Step 6: Final answer
    x = 81,646.99

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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.