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Finding the Fourth Proportional to 202,236.60, 303,354.90 and 102,703.80

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Solution

The fourth proportional to 202,236.60, 303,354.90 and 102,703.80 is: 154,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,236.60 : 303,354.90 = 102,703.80 : x
  2. Step 2: Convert to fraction form
    202,236.60/303,354.90 = 102,703.80/x
  3. Step 3: Cross multiply
    202,236.60x = 303,354.90 × 102,703.80
  4. Step 4: Simplify right side
    202,236.60x = 31,155,700,978.62
  5. Step 5: Solve for x
    x = 31,155,700,978.62/202,236.60
  6. Step 6: Final answer
    x = 154,055.70

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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.