Home / 285,942.30-428,766.99-151,078.77

Finding the Fourth Proportional to 285,942.30, 428,766.99 and 151,078.77

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Solution

The fourth proportional to 285,942.30, 428,766.99 and 151,078.77 is: 226,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,942.30 : 428,766.99 = 151,078.77 : x
  2. Step 2: Convert to fraction form
    285,942.30/428,766.99 = 151,078.77/x
  3. Step 3: Cross multiply
    285,942.30x = 428,766.99 × 151,078.77
  4. Step 4: Simplify right side
    285,942.30x = 64,777,589,465.80
  5. Step 5: Solve for x
    x = 64,777,589,465.80/285,942.30
  6. Step 6: Final answer
    x = 226,540.77

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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.