Home / 285,844.55-394,255.96-205,354.74

Finding the Fourth Proportional to 285,844.55, 394,255.96 and 205,354.74

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Solution

The fourth proportional to 285,844.55, 394,255.96 and 205,354.74 is: 283,239.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,844.55 : 394,255.96 = 205,354.74 : x
  2. Step 2: Convert to fraction form
    285,844.55/394,255.96 = 205,354.74/x
  3. Step 3: Cross multiply
    285,844.55x = 394,255.96 × 205,354.74
  4. Step 4: Simplify right side
    285,844.55x = 80,962,331,124.32
  5. Step 5: Solve for x
    x = 80,962,331,124.32/285,844.55
  6. Step 6: Final answer
    x = 283,239.03

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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.