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Finding the Fourth Proportional to 321,136.65, 482,443.39 and 226,584.74

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Solution

The fourth proportional to 321,136.65, 482,443.39 and 226,584.74 is: 340,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,136.65 : 482,443.39 = 226,584.74 : x
  2. Step 2: Convert to fraction form
    321,136.65/482,443.39 = 226,584.74/x
  3. Step 3: Cross multiply
    321,136.65x = 482,443.39 × 226,584.74
  4. Step 4: Simplify right side
    321,136.65x = 109,314,311,577.21
  5. Step 5: Solve for x
    x = 109,314,311,577.21/321,136.65
  6. Step 6: Final answer
    x = 340,398.12

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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.