Home / 204,023.80-306,035.70-129,228.40

Finding the Fourth Proportional to 204,023.80, 306,035.70 and 129,228.40

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Solution

The fourth proportional to 204,023.80, 306,035.70 and 129,228.40 is: 193,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,023.80 : 306,035.70 = 129,228.40 : x
  2. Step 2: Convert to fraction form
    204,023.80/306,035.70 = 129,228.40/x
  3. Step 3: Cross multiply
    204,023.80x = 306,035.70 × 129,228.40
  4. Step 4: Simplify right side
    204,023.80x = 39,548,503,853.88
  5. Step 5: Solve for x
    x = 39,548,503,853.88/204,023.80
  6. Step 6: Final answer
    x = 193,842.60

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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.