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Finding the Fourth Proportional to 275,009.53, 379,530.69 and 154,150.85

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Solution

The fourth proportional to 275,009.53, 379,530.69 and 154,150.85 is: 212,738.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,009.53 : 379,530.69 = 154,150.85 : x
  2. Step 2: Convert to fraction form
    275,009.53/379,530.69 = 154,150.85/x
  3. Step 3: Cross multiply
    275,009.53x = 379,530.69 × 154,150.85
  4. Step 4: Simplify right side
    275,009.53x = 58,504,977,134.04
  5. Step 5: Solve for x
    x = 58,504,977,134.04/275,009.53
  6. Step 6: Final answer
    x = 212,738.00

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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.