Home / 285,981.04-394,687.84-165,151.68

Finding the Fourth Proportional to 285,981.04, 394,687.84 and 165,151.68

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Solution

The fourth proportional to 285,981.04, 394,687.84 and 165,151.68 is: 227,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,981.04 : 394,687.84 = 165,151.68 : x
  2. Step 2: Convert to fraction form
    285,981.04/394,687.84 = 165,151.68/x
  3. Step 3: Cross multiply
    285,981.04x = 394,687.84 × 165,151.68
  4. Step 4: Simplify right side
    285,981.04x = 65,183,359,851.57
  5. Step 5: Solve for x
    x = 65,183,359,851.57/285,981.04
  6. Step 6: Final answer
    x = 227,928.96

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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.