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Finding the Fourth Proportional to 360,063.96, 539,970.81 and 200,383.56

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Solution

The fourth proportional to 360,063.96, 539,970.81 and 200,383.56 is: 300,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,063.96 : 539,970.81 = 200,383.56 : x
  2. Step 2: Convert to fraction form
    360,063.96/539,970.81 = 200,383.56/x
  3. Step 3: Cross multiply
    360,063.96x = 539,970.81 × 200,383.56
  4. Step 4: Simplify right side
    360,063.96x = 108,201,273,203.88
  5. Step 5: Solve for x
    x = 108,201,273,203.88/360,063.96
  6. Step 6: Final answer
    x = 300,505.70

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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.