Home / 285,271.20-427,665.96-179,857.80

Finding the Fourth Proportional to 285,271.20, 427,665.96 and 179,857.80

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Solution

The fourth proportional to 285,271.20, 427,665.96 and 179,857.80 is: 269,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,271.20 : 427,665.96 = 179,857.80 : x
  2. Step 2: Convert to fraction form
    285,271.20/427,665.96 = 179,857.80/x
  3. Step 3: Cross multiply
    285,271.20x = 427,665.96 × 179,857.80
  4. Step 4: Simplify right side
    285,271.20x = 76,919,058,700.49
  5. Step 5: Solve for x
    x = 76,919,058,700.49/285,271.20
  6. Step 6: Final answer
    x = 269,634.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.