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Finding the Fourth Proportional to 475,319.33, 655,940.67 and 274,115.33

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Solution

The fourth proportional to 475,319.33, 655,940.67 and 274,115.33 is: 378,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,319.33 : 655,940.67 = 274,115.33 : x
  2. Step 2: Convert to fraction form
    475,319.33/655,940.67 = 274,115.33/x
  3. Step 3: Cross multiply
    475,319.33x = 655,940.67 × 274,115.33
  4. Step 4: Simplify right side
    475,319.33x = 179,803,393,217.47
  5. Step 5: Solve for x
    x = 179,803,393,217.47/475,319.33
  6. Step 6: Final answer
    x = 378,279.15

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1.5x scale

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.