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Finding the Fourth Proportional to 285,896.66, 394,584.63 and 158,613.26

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Solution

The fourth proportional to 285,896.66, 394,584.63 and 158,613.26 is: 218,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,896.66 : 394,584.63 = 158,613.26 : x
  2. Step 2: Convert to fraction form
    285,896.66/394,584.63 = 158,613.26/x
  3. Step 3: Cross multiply
    285,896.66x = 394,584.63 × 158,613.26
  4. Step 4: Simplify right side
    285,896.66x = 62,586,354,510.19
  5. Step 5: Solve for x
    x = 62,586,354,510.19/285,896.66
  6. Step 6: Final answer
    x = 218,912.51

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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.