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Finding the Fourth Proportional to 204,268.70, 306,731.10 and 154,405.10

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Solution

The fourth proportional to 204,268.70, 306,731.10 and 154,405.10 is: 231,855.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,268.70 : 306,731.10 = 154,405.10 : x
  2. Step 2: Convert to fraction form
    204,268.70/306,731.10 = 154,405.10/x
  3. Step 3: Cross multiply
    204,268.70x = 306,731.10 × 154,405.10
  4. Step 4: Simplify right side
    204,268.70x = 47,360,846,168.61
  5. Step 5: Solve for x
    x = 47,360,846,168.61/204,268.70
  6. Step 6: Final answer
    x = 231,855.62

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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.