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Finding the Fourth Proportional to 356,342.57, 491,752.85 and 195,203.39

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Solution

The fourth proportional to 356,342.57, 491,752.85 and 195,203.39 is: 269,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,342.57 : 491,752.85 = 195,203.39 : x
  2. Step 2: Convert to fraction form
    356,342.57/491,752.85 = 195,203.39/x
  3. Step 3: Cross multiply
    356,342.57x = 491,752.85 × 195,203.39
  4. Step 4: Simplify right side
    356,342.57x = 95,991,822,386.14
  5. Step 5: Solve for x
    x = 95,991,822,386.14/356,342.57
  6. Step 6: Final answer
    x = 269,380.73

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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.