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Finding the Fourth Proportional to 356,408.99, 491,845.03 and 195,260.57

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Solution

The fourth proportional to 356,408.99, 491,845.03 and 195,260.57 is: 269,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,408.99 : 491,845.03 = 195,260.57 : x
  2. Step 2: Convert to fraction form
    356,408.99/491,845.03 = 195,260.57/x
  3. Step 3: Cross multiply
    356,408.99x = 491,845.03 × 195,260.57
  4. Step 4: Simplify right side
    356,408.99x = 96,037,940,909.47
  5. Step 5: Solve for x
    x = 96,037,940,909.47/356,408.99
  6. Step 6: Final answer
    x = 269,459.93

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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.