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Finding the Fourth Proportional to 204,026.40, 306,039.60 and 141,040.80

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Solution

The fourth proportional to 204,026.40, 306,039.60 and 141,040.80 is: 211,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,026.40 : 306,039.60 = 141,040.80 : x
  2. Step 2: Convert to fraction form
    204,026.40/306,039.60 = 141,040.80/x
  3. Step 3: Cross multiply
    204,026.40x = 306,039.60 × 141,040.80
  4. Step 4: Simplify right side
    204,026.40x = 43,164,070,015.68
  5. Step 5: Solve for x
    x = 43,164,070,015.68/204,026.40
  6. Step 6: Final answer
    x = 211,561.20

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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.