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Finding the Fourth Proportional to 352,083.72, 485,866.98 and 201,171

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Solution

The fourth proportional to 352,083.72, 485,866.98 and 201,171 is: 277,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,083.72 : 485,866.98 = 201,171 : x
  2. Step 2: Convert to fraction form
    352,083.72/485,866.98 = 201,171/x
  3. Step 3: Cross multiply
    352,083.72x = 485,866.98 × 201,171
  4. Step 4: Simplify right side
    352,083.72x = 97,742,346,233.58
  5. Step 5: Solve for x
    x = 97,742,346,233.58/352,083.72
  6. Step 6: Final answer
    x = 277,611.09

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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.