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Finding the Fourth Proportional to 263,363.20, 395,044.80 and 193,379.20

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Solution

The fourth proportional to 263,363.20, 395,044.80 and 193,379.20 is: 290,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,363.20 : 395,044.80 = 193,379.20 : x
  2. Step 2: Convert to fraction form
    263,363.20/395,044.80 = 193,379.20/x
  3. Step 3: Cross multiply
    263,363.20x = 395,044.80 × 193,379.20
  4. Step 4: Simplify right side
    263,363.20x = 76,393,447,388.16
  5. Step 5: Solve for x
    x = 76,393,447,388.16/263,363.20
  6. Step 6: Final answer
    x = 290,068.80

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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.