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Finding the Fourth Proportional to 379,751.53, 569,292.07 and 143,260.29

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Solution

The fourth proportional to 379,751.53, 569,292.07 and 143,260.29 is: 214,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,751.53 : 569,292.07 = 143,260.29 : x
  2. Step 2: Convert to fraction form
    379,751.53/569,292.07 = 143,260.29/x
  3. Step 3: Cross multiply
    379,751.53x = 569,292.07 × 143,260.29
  4. Step 4: Simplify right side
    379,751.53x = 81,556,947,042.90
  5. Step 5: Solve for x
    x = 81,556,947,042.90/379,751.53
  6. Step 6: Final answer
    x = 214,763.97

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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.