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Finding the Fourth Proportional to 360,432.92, 540,649.42 and 135,843.75

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Solution

The fourth proportional to 360,432.92, 540,649.42 and 135,843.75 is: 203,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,432.92 : 540,649.42 = 135,843.75 : x
  2. Step 2: Convert to fraction form
    360,432.92/540,649.42 = 135,843.75/x
  3. Step 3: Cross multiply
    360,432.92x = 540,649.42 × 135,843.75
  4. Step 4: Simplify right side
    360,432.92x = 73,443,844,308.52
  5. Step 5: Solve for x
    x = 73,443,844,308.52/360,432.92
  6. Step 6: Final answer
    x = 203,765.64

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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.