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Finding the Fourth Proportional to 221,652, 332,391.87 and 71,856.18

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Solution

The fourth proportional to 221,652, 332,391.87 and 71,856.18 is: 107,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,652 : 332,391.87 = 71,856.18 : x
  2. Step 2: Convert to fraction form
    221,652/332,391.87 = 71,856.18/x
  3. Step 3: Cross multiply
    221,652x = 332,391.87 × 71,856.18
  4. Step 4: Simplify right side
    221,652x = 23,884,410,041.26
  5. Step 5: Solve for x
    x = 23,884,410,041.26/221,652
  6. Step 6: Final answer
    x = 107,756.35

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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.