Home / 285,895.50-394,537.64-158,571.42

Finding the Fourth Proportional to 285,895.50, 394,537.64 and 158,571.42

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Solution

The fourth proportional to 285,895.50, 394,537.64 and 158,571.42 is: 218,829.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,895.50 : 394,537.64 = 158,571.42 : x
  2. Step 2: Convert to fraction form
    285,895.50/394,537.64 = 158,571.42/x
  3. Step 3: Cross multiply
    285,895.50x = 394,537.64 × 158,571.42
  4. Step 4: Simplify right side
    285,895.50x = 62,562,393,025.39
  5. Step 5: Solve for x
    x = 62,562,393,025.39/285,895.50
  6. Step 6: Final answer
    x = 218,829.58

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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.