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Finding the Fourth Proportional to 202,218.60, 303,327.90 and 131,716.20

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Solution

The fourth proportional to 202,218.60, 303,327.90 and 131,716.20 is: 197,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,218.60 : 303,327.90 = 131,716.20 : x
  2. Step 2: Convert to fraction form
    202,218.60/303,327.90 = 131,716.20/x
  3. Step 3: Cross multiply
    202,218.60x = 303,327.90 × 131,716.20
  4. Step 4: Simplify right side
    202,218.60x = 39,953,198,341.98
  5. Step 5: Solve for x
    x = 39,953,198,341.98/202,218.60
  6. Step 6: Final answer
    x = 197,574.30

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1.5x scale

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.