Home / 285,921.30-394,563.78-165,058.50

Finding the Fourth Proportional to 285,921.30, 394,563.78 and 165,058.50

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Solution

The fourth proportional to 285,921.30, 394,563.78 and 165,058.50 is: 227,776.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,921.30 : 394,563.78 = 165,058.50 : x
  2. Step 2: Convert to fraction form
    285,921.30/394,563.78 = 165,058.50/x
  3. Step 3: Cross multiply
    285,921.30x = 394,563.78 × 165,058.50
  4. Step 4: Simplify right side
    285,921.30x = 65,126,105,681.13
  5. Step 5: Solve for x
    x = 65,126,105,681.13/285,921.30
  6. Step 6: Final answer
    x = 227,776.33

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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.