Home / 285,262.39-393,660.60-156,198.52

Finding the Fourth Proportional to 285,262.39, 393,660.60 and 156,198.52

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Solution

The fourth proportional to 285,262.39, 393,660.60 and 156,198.52 is: 215,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,262.39 : 393,660.60 = 156,198.52 : x
  2. Step 2: Convert to fraction form
    285,262.39/393,660.60 = 156,198.52/x
  3. Step 3: Cross multiply
    285,262.39x = 393,660.60 × 156,198.52
  4. Step 4: Simplify right side
    285,262.39x = 61,489,203,102.31
  5. Step 5: Solve for x
    x = 61,489,203,102.31/285,262.39
  6. Step 6: Final answer
    x = 215,553.14

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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.