Home / 367,930.20-551,895.30-131,539.80

Finding the Fourth Proportional to 367,930.20, 551,895.30 and 131,539.80

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Solution

The fourth proportional to 367,930.20, 551,895.30 and 131,539.80 is: 197,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,930.20 : 551,895.30 = 131,539.80 : x
  2. Step 2: Convert to fraction form
    367,930.20/551,895.30 = 131,539.80/x
  3. Step 3: Cross multiply
    367,930.20x = 551,895.30 × 131,539.80
  4. Step 4: Simplify right side
    367,930.20x = 72,596,197,382.94
  5. Step 5: Solve for x
    x = 72,596,197,382.94/367,930.20
  6. Step 6: Final answer
    x = 197,309.70

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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.