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Finding the Fourth Proportional to 285,829.52, 394,442.52 and 158,505.44

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Solution

The fourth proportional to 285,829.52, 394,442.52 and 158,505.44 is: 218,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,829.52 : 394,442.52 = 158,505.44 : x
  2. Step 2: Convert to fraction form
    285,829.52/394,442.52 = 158,505.44/x
  3. Step 3: Cross multiply
    285,829.52x = 394,442.52 × 158,505.44
  4. Step 4: Simplify right side
    285,829.52x = 62,521,285,187.31
  5. Step 5: Solve for x
    x = 62,521,285,187.31/285,829.52
  6. Step 6: Final answer
    x = 218,736.28

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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.