Home / 285,831.30-394,418.94-165,011.70

Finding the Fourth Proportional to 285,831.30, 394,418.94 and 165,011.70

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Solution

The fourth proportional to 285,831.30, 394,418.94 and 165,011.70 is: 227,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,831.30 : 394,418.94 = 165,011.70 : x
  2. Step 2: Convert to fraction form
    285,831.30/394,418.94 = 165,011.70/x
  3. Step 3: Cross multiply
    285,831.30x = 394,418.94 × 165,011.70
  4. Step 4: Simplify right side
    285,831.30x = 65,083,739,801.60
  5. Step 5: Solve for x
    x = 65,083,739,801.60/285,831.30
  6. Step 6: Final answer
    x = 227,699.83

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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.