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Finding the Fourth Proportional to 260,617.44, 359,336.88 and 220,260

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Solution

The fourth proportional to 260,617.44, 359,336.88 and 220,260 is: 303,692.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,617.44 : 359,336.88 = 220,260 : x
  2. Step 2: Convert to fraction form
    260,617.44/359,336.88 = 220,260/x
  3. Step 3: Cross multiply
    260,617.44x = 359,336.88 × 220,260
  4. Step 4: Simplify right side
    260,617.44x = 79,147,541,188.80
  5. Step 5: Solve for x
    x = 79,147,541,188.80/260,617.44
  6. Step 6: Final answer
    x = 303,692.42

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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.