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Finding the Fourth Proportional to 221,344.80, 332,017.20 and 55,132.80

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Solution

The fourth proportional to 221,344.80, 332,017.20 and 55,132.80 is: 82,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,344.80 : 332,017.20 = 55,132.80 : x
  2. Step 2: Convert to fraction form
    221,344.80/332,017.20 = 55,132.80/x
  3. Step 3: Cross multiply
    221,344.80x = 332,017.20 × 55,132.80
  4. Step 4: Simplify right side
    221,344.80x = 18,305,037,884.16
  5. Step 5: Solve for x
    x = 18,305,037,884.16/221,344.80
  6. Step 6: Final answer
    x = 82,699.20

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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.