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Finding the Fourth Proportional to 201,379.70, 302,059.95 and 68,246.90

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Solution

The fourth proportional to 201,379.70, 302,059.95 and 68,246.90 is: 102,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,379.70 : 302,059.95 = 68,246.90 : x
  2. Step 2: Convert to fraction form
    201,379.70/302,059.95 = 68,246.90/x
  3. Step 3: Cross multiply
    201,379.70x = 302,059.95 × 68,246.90
  4. Step 4: Simplify right side
    201,379.70x = 20,614,655,201.66
  5. Step 5: Solve for x
    x = 20,614,655,201.66/201,379.70
  6. Step 6: Final answer
    x = 102,367.10

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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.