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Finding the Fourth Proportional to 202,198.40, 303,297.60 and 185,139.80

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Solution

The fourth proportional to 202,198.40, 303,297.60 and 185,139.80 is: 277,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,198.40 : 303,297.60 = 185,139.80 : x
  2. Step 2: Convert to fraction form
    202,198.40/303,297.60 = 185,139.80/x
  3. Step 3: Cross multiply
    202,198.40x = 303,297.60 × 185,139.80
  4. Step 4: Simplify right side
    202,198.40x = 56,152,457,004.48
  5. Step 5: Solve for x
    x = 56,152,457,004.48/202,198.40
  6. Step 6: Final answer
    x = 277,709.70

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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.