Home / 285,236.13-393,610.89-156,149.85

Finding the Fourth Proportional to 285,236.13, 393,610.89 and 156,149.85

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Solution

The fourth proportional to 285,236.13, 393,610.89 and 156,149.85 is: 215,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,236.13 : 393,610.89 = 156,149.85 : x
  2. Step 2: Convert to fraction form
    285,236.13/393,610.89 = 156,149.85/x
  3. Step 3: Cross multiply
    285,236.13x = 393,610.89 × 156,149.85
  4. Step 4: Simplify right side
    285,236.13x = 61,462,280,651.12
  5. Step 5: Solve for x
    x = 61,462,280,651.12/285,236.13
  6. Step 6: Final answer
    x = 215,478.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.