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Finding the Fourth Proportional to 310,627.81, 465,826.34 and 108,171.92

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Solution

The fourth proportional to 310,627.81, 465,826.34 and 108,171.92 is: 162,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,627.81 : 465,826.34 = 108,171.92 : x
  2. Step 2: Convert to fraction form
    310,627.81/465,826.34 = 108,171.92/x
  3. Step 3: Cross multiply
    310,627.81x = 465,826.34 × 108,171.92
  4. Step 4: Simplify right side
    310,627.81x = 50,389,331,019.37
  5. Step 5: Solve for x
    x = 50,389,331,019.37/310,627.81
  6. Step 6: Final answer
    x = 162,217.71

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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.