Home / 285,822.60-394,406.76-165,002.80

Finding the Fourth Proportional to 285,822.60, 394,406.76 and 165,002.80

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Solution

The fourth proportional to 285,822.60, 394,406.76 and 165,002.80 is: 227,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,822.60 : 394,406.76 = 165,002.80 : x
  2. Step 2: Convert to fraction form
    285,822.60/394,406.76 = 165,002.80/x
  3. Step 3: Cross multiply
    285,822.60x = 394,406.76 × 165,002.80
  4. Step 4: Simplify right side
    285,822.60x = 65,078,219,738.93
  5. Step 5: Solve for x
    x = 65,078,219,738.93/285,822.60
  6. Step 6: Final answer
    x = 227,687.45

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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.