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Finding the Fourth Proportional to 202,310.80, 303,466.20 and 69,171.10

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Solution

The fourth proportional to 202,310.80, 303,466.20 and 69,171.10 is: 103,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,310.80 : 303,466.20 = 69,171.10 : x
  2. Step 2: Convert to fraction form
    202,310.80/303,466.20 = 69,171.10/x
  3. Step 3: Cross multiply
    202,310.80x = 303,466.20 × 69,171.10
  4. Step 4: Simplify right side
    202,310.80x = 20,991,090,866.82
  5. Step 5: Solve for x
    x = 20,991,090,866.82/202,310.80
  6. Step 6: Final answer
    x = 103,756.65

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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.