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Finding the Fourth Proportional to 275,183.94, 379,727.52 and 154,297.50

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Solution

The fourth proportional to 275,183.94, 379,727.52 and 154,297.50 is: 212,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,183.94 : 379,727.52 = 154,297.50 : x
  2. Step 2: Convert to fraction form
    275,183.94/379,727.52 = 154,297.50/x
  3. Step 3: Cross multiply
    275,183.94x = 379,727.52 × 154,297.50
  4. Step 4: Simplify right side
    275,183.94x = 58,591,007,017.20
  5. Step 5: Solve for x
    x = 58,591,007,017.20/275,183.94
  6. Step 6: Final answer
    x = 212,915.79

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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.