Home / 379,748.28-569,287.19-143,257.04

Finding the Fourth Proportional to 379,748.28, 569,287.19 and 143,257.04

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Solution

The fourth proportional to 379,748.28, 569,287.19 and 143,257.04 is: 214,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,748.28 : 569,287.19 = 143,257.04 : x
  2. Step 2: Convert to fraction form
    379,748.28/569,287.19 = 143,257.04/x
  3. Step 3: Cross multiply
    379,748.28x = 569,287.19 × 143,257.04
  4. Step 4: Simplify right side
    379,748.28x = 81,554,394,186.60
  5. Step 5: Solve for x
    x = 81,554,394,186.60/379,748.28
  6. Step 6: Final answer
    x = 214,759.09

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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.