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Finding the Fourth Proportional to 221,622.39, 332,433.57 and 55,410.39

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Solution

The fourth proportional to 221,622.39, 332,433.57 and 55,410.39 is: 83,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,622.39 : 332,433.57 = 55,410.39 : x
  2. Step 2: Convert to fraction form
    221,622.39/332,433.57 = 55,410.39/x
  3. Step 3: Cross multiply
    221,622.39x = 332,433.57 × 55,410.39
  4. Step 4: Simplify right side
    221,622.39x = 18,420,273,762.79
  5. Step 5: Solve for x
    x = 18,420,273,762.79/221,622.39
  6. Step 6: Final answer
    x = 83,115.58

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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.