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Finding the Fourth Proportional to 221,249.40, 331,874.10 and 202,003.80

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Solution

The fourth proportional to 221,249.40, 331,874.10 and 202,003.80 is: 303,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,249.40 : 331,874.10 = 202,003.80 : x
  2. Step 2: Convert to fraction form
    221,249.40/331,874.10 = 202,003.80/x
  3. Step 3: Cross multiply
    221,249.40x = 331,874.10 × 202,003.80
  4. Step 4: Simplify right side
    221,249.40x = 67,039,829,321.58
  5. Step 5: Solve for x
    x = 67,039,829,321.58/221,249.40
  6. Step 6: Final answer
    x = 303,005.70

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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.