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Finding the Fourth Proportional to 256,320.84, 384,481.24 and 69,346.92

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Solution

The fourth proportional to 256,320.84, 384,481.24 and 69,346.92 is: 104,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,320.84 : 384,481.24 = 69,346.92 : x
  2. Step 2: Convert to fraction form
    256,320.84/384,481.24 = 69,346.92/x
  3. Step 3: Cross multiply
    256,320.84x = 384,481.24 × 69,346.92
  4. Step 4: Simplify right side
    256,320.84x = 26,662,589,791.78
  5. Step 5: Solve for x
    x = 26,662,589,791.78/256,320.84
  6. Step 6: Final answer
    x = 104,020.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.