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Finding the Fourth Proportional to 202,216.60, 303,519.30 and 102,489.40

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Solution

The fourth proportional to 202,216.60, 303,519.30 and 102,489.40 is: 153,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,216.60 : 303,519.30 = 102,489.40 : x
  2. Step 2: Convert to fraction form
    202,216.60/303,519.30 = 102,489.40/x
  3. Step 3: Cross multiply
    202,216.60x = 303,519.30 × 102,489.40
  4. Step 4: Simplify right side
    202,216.60x = 31,107,510,945.42
  5. Step 5: Solve for x
    x = 31,107,510,945.42/202,216.60
  6. Step 6: Final answer
    x = 153,832.63

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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.