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Finding the Fourth Proportional to 252,000.30, 378,000.45 and 204,761.10

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Solution

The fourth proportional to 252,000.30, 378,000.45 and 204,761.10 is: 307,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,000.30 : 378,000.45 = 204,761.10 : x
  2. Step 2: Convert to fraction form
    252,000.30/378,000.45 = 204,761.10/x
  3. Step 3: Cross multiply
    252,000.30x = 378,000.45 × 204,761.10
  4. Step 4: Simplify right side
    252,000.30x = 77,399,787,942.50
  5. Step 5: Solve for x
    x = 77,399,787,942.50/252,000.30
  6. Step 6: Final answer
    x = 307,141.65

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1.5x scale

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.