Home / 379,748.53-569,287.57-143,257.29

Finding the Fourth Proportional to 379,748.53, 569,287.57 and 143,257.29

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Solution

The fourth proportional to 379,748.53, 569,287.57 and 143,257.29 is: 214,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,748.53 : 569,287.57 = 143,257.29 : x
  2. Step 2: Convert to fraction form
    379,748.53/569,287.57 = 143,257.29/x
  3. Step 3: Cross multiply
    379,748.53x = 569,287.57 × 143,257.29
  4. Step 4: Simplify right side
    379,748.53x = 81,554,594,508.89
  5. Step 5: Solve for x
    x = 81,554,594,508.89/379,748.53
  6. Step 6: Final answer
    x = 214,759.47

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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.