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Finding the Fourth Proportional to 356,374.98, 491,797.68 and 195,235.86

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Solution

The fourth proportional to 356,374.98, 491,797.68 and 195,235.86 is: 269,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,374.98 : 491,797.68 = 195,235.86 : x
  2. Step 2: Convert to fraction form
    356,374.98/491,797.68 = 195,235.86/x
  3. Step 3: Cross multiply
    356,374.98x = 491,797.68 × 195,235.86
  4. Step 4: Simplify right side
    356,374.98x = 96,016,543,000.80
  5. Step 5: Solve for x
    x = 96,016,543,000.80/356,374.98
  6. Step 6: Final answer
    x = 269,425.60

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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.