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Finding the Fourth Proportional to 325,385.66, 487,998.84 and 135,847.59

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Solution

The fourth proportional to 325,385.66, 487,998.84 and 135,847.59 is: 203,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,385.66 : 487,998.84 = 135,847.59 : x
  2. Step 2: Convert to fraction form
    325,385.66/487,998.84 = 135,847.59/x
  3. Step 3: Cross multiply
    325,385.66x = 487,998.84 × 135,847.59
  4. Step 4: Simplify right side
    325,385.66x = 66,293,466,336.80
  5. Step 5: Solve for x
    x = 66,293,466,336.80/325,385.66
  6. Step 6: Final answer
    x = 203,738.13

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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.