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Finding the Fourth Proportional to 230,341.20, 345,511.80 and 205,846.80

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Solution

The fourth proportional to 230,341.20, 345,511.80 and 205,846.80 is: 308,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,341.20 : 345,511.80 = 205,846.80 : x
  2. Step 2: Convert to fraction form
    230,341.20/345,511.80 = 205,846.80/x
  3. Step 3: Cross multiply
    230,341.20x = 345,511.80 × 205,846.80
  4. Step 4: Simplify right side
    230,341.20x = 71,122,498,392.24
  5. Step 5: Solve for x
    x = 71,122,498,392.24/230,341.20
  6. Step 6: Final answer
    x = 308,770.20

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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.