Home / 284,863.23-427,279.86-85,185.27

Finding the Fourth Proportional to 284,863.23, 427,279.86 and 85,185.27

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Solution

The fourth proportional to 284,863.23, 427,279.86 and 85,185.27 is: 127,773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,863.23 : 427,279.86 = 85,185.27 : x
  2. Step 2: Convert to fraction form
    284,863.23/427,279.86 = 85,185.27/x
  3. Step 3: Cross multiply
    284,863.23x = 427,279.86 × 85,185.27
  4. Step 4: Simplify right side
    284,863.23x = 36,397,950,239.66
  5. Step 5: Solve for x
    x = 36,397,950,239.66/284,863.23
  6. Step 6: Final answer
    x = 127,773.42

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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.