Home / 204,330.80-306,496.20-142,122.80

Finding the Fourth Proportional to 204,330.80, 306,496.20 and 142,122.80

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Solution

The fourth proportional to 204,330.80, 306,496.20 and 142,122.80 is: 213,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,330.80 : 306,496.20 = 142,122.80 : x
  2. Step 2: Convert to fraction form
    204,330.80/306,496.20 = 142,122.80/x
  3. Step 3: Cross multiply
    204,330.80x = 306,496.20 × 142,122.80
  4. Step 4: Simplify right side
    204,330.80x = 43,560,098,133.36
  5. Step 5: Solve for x
    x = 43,560,098,133.36/204,330.80
  6. Step 6: Final answer
    x = 213,184.20

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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.