Home / 379,748.66-569,287.76-143,257.41

Finding the Fourth Proportional to 379,748.66, 569,287.76 and 143,257.41

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Solution

The fourth proportional to 379,748.66, 569,287.76 and 143,257.41 is: 214,759.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,748.66 : 569,287.76 = 143,257.41 : x
  2. Step 2: Convert to fraction form
    379,748.66/569,287.76 = 143,257.41/x
  3. Step 3: Cross multiply
    379,748.66x = 569,287.76 × 143,257.41
  4. Step 4: Simplify right side
    379,748.66x = 81,554,689,326.01
  5. Step 5: Solve for x
    x = 81,554,689,326.01/379,748.66
  6. Step 6: Final answer
    x = 214,759.65

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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.