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Finding the Fourth Proportional to 260,336.88, 359,451.09 and 203,040.20

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Solution

The fourth proportional to 260,336.88, 359,451.09 and 203,040.20 is: 280,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,336.88 : 359,451.09 = 203,040.20 : x
  2. Step 2: Convert to fraction form
    260,336.88/359,451.09 = 203,040.20/x
  3. Step 3: Cross multiply
    260,336.88x = 359,451.09 × 203,040.20
  4. Step 4: Simplify right side
    260,336.88x = 72,983,019,406.56
  5. Step 5: Solve for x
    x = 72,983,019,406.56/260,336.88
  6. Step 6: Final answer
    x = 280,340.69

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1.5x scale

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.