Home / 202,036.80-303,638.40-198,537.60

Finding the Fourth Proportional to 202,036.80, 303,638.40 and 198,537.60

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Solution

The fourth proportional to 202,036.80, 303,638.40 and 198,537.60 is: 298,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,036.80 : 303,638.40 = 198,537.60 : x
  2. Step 2: Convert to fraction form
    202,036.80/303,638.40 = 198,537.60/x
  3. Step 3: Cross multiply
    202,036.80x = 303,638.40 × 198,537.60
  4. Step 4: Simplify right side
    202,036.80x = 60,283,639,203.84
  5. Step 5: Solve for x
    x = 60,283,639,203.84/202,036.80
  6. Step 6: Final answer
    x = 298,379.50

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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.