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Finding the Fourth Proportional to 275,797.64, 380,591.93 and 153,289.43

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Solution

The fourth proportional to 275,797.64, 380,591.93 and 153,289.43 is: 211,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,797.64 : 380,591.93 = 153,289.43 : x
  2. Step 2: Convert to fraction form
    275,797.64/380,591.93 = 153,289.43/x
  3. Step 3: Cross multiply
    275,797.64x = 380,591.93 × 153,289.43
  4. Step 4: Simplify right side
    275,797.64x = 58,340,719,919.78
  5. Step 5: Solve for x
    x = 58,340,719,919.78/275,797.64
  6. Step 6: Final answer
    x = 211,534.51

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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.