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Finding the Fourth Proportional to 285,601.02, 394,122.70 and 158,273.88

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Solution

The fourth proportional to 285,601.02, 394,122.70 and 158,273.88 is: 218,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,601.02 : 394,122.70 = 158,273.88 : x
  2. Step 2: Convert to fraction form
    285,601.02/394,122.70 = 158,273.88/x
  3. Step 3: Cross multiply
    285,601.02x = 394,122.70 × 158,273.88
  4. Step 4: Simplify right side
    285,601.02x = 62,379,326,754.67
  5. Step 5: Solve for x
    x = 62,379,326,754.67/285,601.02
  6. Step 6: Final answer
    x = 218,414.23

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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.