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Finding the Fourth Proportional to 356,690.31, 492,221.97 and 195,539.85

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Solution

The fourth proportional to 356,690.31, 492,221.97 and 195,539.85 is: 269,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,690.31 : 492,221.97 = 195,539.85 : x
  2. Step 2: Convert to fraction form
    356,690.31/492,221.97 = 195,539.85/x
  3. Step 3: Cross multiply
    356,690.31x = 492,221.97 × 195,539.85
  4. Step 4: Simplify right side
    356,690.31x = 96,249,010,180.50
  5. Step 5: Solve for x
    x = 96,249,010,180.50/356,690.31
  6. Step 6: Final answer
    x = 269,839.15

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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.