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Finding the Fourth Proportional to 312,451.25, 468,677.57 and 112,912.56

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Solution

The fourth proportional to 312,451.25, 468,677.57 and 112,912.56 is: 169,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,451.25 : 468,677.57 = 112,912.56 : x
  2. Step 2: Convert to fraction form
    312,451.25/468,677.57 = 112,912.56/x
  3. Step 3: Cross multiply
    312,451.25x = 468,677.57 × 112,912.56
  4. Step 4: Simplify right side
    312,451.25x = 52,919,584,243.28
  5. Step 5: Solve for x
    x = 52,919,584,243.28/312,451.25
  6. Step 6: Final answer
    x = 169,369.09

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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.