Home / 269,121.20-403,681.80-206,135.60

Finding the Fourth Proportional to 269,121.20, 403,681.80 and 206,135.60

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Solution

The fourth proportional to 269,121.20, 403,681.80 and 206,135.60 is: 309,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,121.20 : 403,681.80 = 206,135.60 : x
  2. Step 2: Convert to fraction form
    269,121.20/403,681.80 = 206,135.60/x
  3. Step 3: Cross multiply
    269,121.20x = 403,681.80 × 206,135.60
  4. Step 4: Simplify right side
    269,121.20x = 83,213,190,052.08
  5. Step 5: Solve for x
    x = 83,213,190,052.08/269,121.20
  6. Step 6: Final answer
    x = 309,203.40

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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.