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Finding the Fourth Proportional to 201,745.10, 302,530.10 and 68,589.60

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Solution

The fourth proportional to 201,745.10, 302,530.10 and 68,589.60 is: 102,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,745.10 : 302,530.10 = 68,589.60 : x
  2. Step 2: Convert to fraction form
    201,745.10/302,530.10 = 68,589.60/x
  3. Step 3: Cross multiply
    201,745.10x = 302,530.10 × 68,589.60
  4. Step 4: Simplify right side
    201,745.10x = 20,750,418,204.01
  5. Step 5: Solve for x
    x = 20,750,418,204.01/201,745.10
  6. Step 6: Final answer
    x = 102,854.64

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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.