Home / 204,012.80-306,019.20-154,246.40

Finding the Fourth Proportional to 204,012.80, 306,019.20 and 154,246.40

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Solution

The fourth proportional to 204,012.80, 306,019.20 and 154,246.40 is: 231,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,012.80 : 306,019.20 = 154,246.40 : x
  2. Step 2: Convert to fraction form
    204,012.80/306,019.20 = 154,246.40/x
  3. Step 3: Cross multiply
    204,012.80x = 306,019.20 × 154,246.40
  4. Step 4: Simplify right side
    204,012.80x = 47,202,359,930.88
  5. Step 5: Solve for x
    x = 47,202,359,930.88/204,012.80
  6. Step 6: Final answer
    x = 231,369.60

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1.5x scale

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.