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Finding the Fourth Proportional to 358,701.41, 494,971.31 and 220,858.44

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Solution

The fourth proportional to 358,701.41, 494,971.31 and 220,858.44 is: 304,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,701.41 : 494,971.31 = 220,858.44 : x
  2. Step 2: Convert to fraction form
    358,701.41/494,971.31 = 220,858.44/x
  3. Step 3: Cross multiply
    358,701.41x = 494,971.31 × 220,858.44
  4. Step 4: Simplify right side
    358,701.41x = 109,318,591,371.36
  5. Step 5: Solve for x
    x = 109,318,591,371.36/358,701.41
  6. Step 6: Final answer
    x = 304,762.09

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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.