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Finding the Fourth Proportional to 427,375.56, 641,106.96 and 146,856.36

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Solution

The fourth proportional to 427,375.56, 641,106.96 and 146,856.36 is: 220,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,375.56 : 641,106.96 = 146,856.36 : x
  2. Step 2: Convert to fraction form
    427,375.56/641,106.96 = 146,856.36/x
  3. Step 3: Cross multiply
    427,375.56x = 641,106.96 × 146,856.36
  4. Step 4: Simplify right side
    427,375.56x = 94,150,634,516.27
  5. Step 5: Solve for x
    x = 94,150,634,516.27/427,375.56
  6. Step 6: Final answer
    x = 220,299.53

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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.