Home / 275,167.14-379,738.96-154,319.60

Finding the Fourth Proportional to 275,167.14, 379,738.96 and 154,319.60

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Solution

The fourth proportional to 275,167.14, 379,738.96 and 154,319.60 is: 212,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,167.14 : 379,738.96 = 154,319.60 : x
  2. Step 2: Convert to fraction form
    275,167.14/379,738.96 = 154,319.60/x
  3. Step 3: Cross multiply
    275,167.14x = 379,738.96 × 154,319.60
  4. Step 4: Simplify right side
    275,167.14x = 58,601,164,411.62
  5. Step 5: Solve for x
    x = 58,601,164,411.62/275,167.14
  6. Step 6: Final answer
    x = 212,965.71

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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.