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Finding the Fourth Proportional to 285,633.33, 428,510.07 and 108,136.41

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Solution

The fourth proportional to 285,633.33, 428,510.07 and 108,136.41 is: 162,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,633.33 : 428,510.07 = 108,136.41 : x
  2. Step 2: Convert to fraction form
    285,633.33/428,510.07 = 108,136.41/x
  3. Step 3: Cross multiply
    285,633.33x = 428,510.07 × 108,136.41
  4. Step 4: Simplify right side
    285,633.33x = 46,337,540,618.65
  5. Step 5: Solve for x
    x = 46,337,540,618.65/285,633.33
  6. Step 6: Final answer
    x = 162,227.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.