Home / 285,933.76-394,635.84-158,650.36

Finding the Fourth Proportional to 285,933.76, 394,635.84 and 158,650.36

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Solution

The fourth proportional to 285,933.76, 394,635.84 and 158,650.36 is: 218,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,933.76 : 394,635.84 = 158,650.36 : x
  2. Step 2: Convert to fraction form
    285,933.76/394,635.84 = 158,650.36/x
  3. Step 3: Cross multiply
    285,933.76x = 394,635.84 × 158,650.36
  4. Step 4: Simplify right side
    285,933.76x = 62,609,118,084.90
  5. Step 5: Solve for x
    x = 62,609,118,084.90/285,933.76
  6. Step 6: Final answer
    x = 218,963.71

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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.