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Finding the Fourth Proportional to 356,446.87, 491,896.59 and 195,308.05

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Solution

The fourth proportional to 356,446.87, 491,896.59 and 195,308.05 is: 269,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,446.87 : 491,896.59 = 195,308.05 : x
  2. Step 2: Convert to fraction form
    356,446.87/491,896.59 = 195,308.05/x
  3. Step 3: Cross multiply
    356,446.87x = 491,896.59 × 195,308.05
  4. Step 4: Simplify right side
    356,446.87x = 96,071,363,794.55
  5. Step 5: Solve for x
    x = 96,071,363,794.55/356,446.87
  6. Step 6: Final answer
    x = 269,525.06

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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.