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Finding the Fourth Proportional to 412,350.80, 618,439.80 and 202,139.60

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Solution

The fourth proportional to 412,350.80, 618,439.80 and 202,139.60 is: 303,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,350.80 : 618,439.80 = 202,139.60 : x
  2. Step 2: Convert to fraction form
    412,350.80/618,439.80 = 202,139.60/x
  3. Step 3: Cross multiply
    412,350.80x = 618,439.80 × 202,139.60
  4. Step 4: Simplify right side
    412,350.80x = 125,011,173,796.08
  5. Step 5: Solve for x
    x = 125,011,173,796.08/412,350.80
  6. Step 6: Final answer
    x = 303,167.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.