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Finding the Fourth Proportional to 356,155.68, 491,494.77 and 195,010.70

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Solution

The fourth proportional to 356,155.68, 491,494.77 and 195,010.70 is: 269,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,155.68 : 491,494.77 = 195,010.70 : x
  2. Step 2: Convert to fraction form
    356,155.68/491,494.77 = 195,010.70/x
  3. Step 3: Cross multiply
    356,155.68x = 491,494.77 × 195,010.70
  4. Step 4: Simplify right side
    356,155.68x = 95,846,739,144.04
  5. Step 5: Solve for x
    x = 95,846,739,144.04/356,155.68
  6. Step 6: Final answer
    x = 269,114.73

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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.