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Finding the Fourth Proportional to 201,719.30, 302,469.60 and 68,545.58

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Solution

The fourth proportional to 201,719.30, 302,469.60 and 68,545.58 is: 102,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,719.30 : 302,469.60 = 68,545.58 : x
  2. Step 2: Convert to fraction form
    201,719.30/302,469.60 = 68,545.58/x
  3. Step 3: Cross multiply
    201,719.30x = 302,469.60 × 68,545.58
  4. Step 4: Simplify right side
    201,719.30x = 20,732,954,164.37
  5. Step 5: Solve for x
    x = 20,732,954,164.37/201,719.30
  6. Step 6: Final answer
    x = 102,781.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.