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Finding the Fourth Proportional to 221,206.80, 331,810.20 and 73,462.80

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Solution

The fourth proportional to 221,206.80, 331,810.20 and 73,462.80 is: 110,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,206.80 : 331,810.20 = 73,462.80 : x
  2. Step 2: Convert to fraction form
    221,206.80/331,810.20 = 73,462.80/x
  3. Step 3: Cross multiply
    221,206.80x = 331,810.20 × 73,462.80
  4. Step 4: Simplify right side
    221,206.80x = 24,375,706,360.56
  5. Step 5: Solve for x
    x = 24,375,706,360.56/221,206.80
  6. Step 6: Final answer
    x = 110,194.20

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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.