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Finding the Fourth Proportional to 202,629.40, 303,506.70 and 131,770.60

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Solution

The fourth proportional to 202,629.40, 303,506.70 and 131,770.60 is: 197,371.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,629.40 : 303,506.70 = 131,770.60 : x
  2. Step 2: Convert to fraction form
    202,629.40/303,506.70 = 131,770.60/x
  3. Step 3: Cross multiply
    202,629.40x = 303,506.70 × 131,770.60
  4. Step 4: Simplify right side
    202,629.40x = 39,993,259,963.02
  5. Step 5: Solve for x
    x = 39,993,259,963.02/202,629.40
  6. Step 6: Final answer
    x = 197,371.46

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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.