Home / 285,979.81-394,687.13-165,120.89

Finding the Fourth Proportional to 285,979.81, 394,687.13 and 165,120.89

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Solution

The fourth proportional to 285,979.81, 394,687.13 and 165,120.89 is: 227,887.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,979.81 : 394,687.13 = 165,120.89 : x
  2. Step 2: Convert to fraction form
    285,979.81/394,687.13 = 165,120.89/x
  3. Step 3: Cross multiply
    285,979.81x = 394,687.13 × 165,120.89
  4. Step 4: Simplify right side
    285,979.81x = 65,171,090,177.15
  5. Step 5: Solve for x
    x = 65,171,090,177.15/285,979.81
  6. Step 6: Final answer
    x = 227,887.04

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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.