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Finding the Fourth Proportional to 371,195.44, 512,481.86 and 255,108.86

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Solution

The fourth proportional to 371,195.44, 512,481.86 and 255,108.86 is: 352,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,195.44 : 512,481.86 = 255,108.86 : x
  2. Step 2: Convert to fraction form
    371,195.44/512,481.86 = 255,108.86/x
  3. Step 3: Cross multiply
    371,195.44x = 512,481.86 × 255,108.86
  4. Step 4: Simplify right side
    371,195.44x = 130,738,663,075.28
  5. Step 5: Solve for x
    x = 130,738,663,075.28/371,195.44
  6. Step 6: Final answer
    x = 352,209.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.