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Finding the Fourth Proportional to 202,322.80, 303,484.20 and 69,191.20

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Solution

The fourth proportional to 202,322.80, 303,484.20 and 69,191.20 is: 103,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,322.80 : 303,484.20 = 69,191.20 : x
  2. Step 2: Convert to fraction form
    202,322.80/303,484.20 = 69,191.20/x
  3. Step 3: Cross multiply
    202,322.80x = 303,484.20 × 69,191.20
  4. Step 4: Simplify right side
    202,322.80x = 20,998,435,979.04
  5. Step 5: Solve for x
    x = 20,998,435,979.04/202,322.80
  6. Step 6: Final answer
    x = 103,786.80

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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.