Home / 345,067.80-516,435.30-303,077.40

Finding the Fourth Proportional to 345,067.80, 516,435.30 and 303,077.40

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Solution

The fourth proportional to 345,067.80, 516,435.30 and 303,077.40 is: 453,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,067.80 : 516,435.30 = 303,077.40 : x
  2. Step 2: Convert to fraction form
    345,067.80/516,435.30 = 303,077.40/x
  3. Step 3: Cross multiply
    345,067.80x = 516,435.30 × 303,077.40
  4. Step 4: Simplify right side
    345,067.80x = 156,519,867,992.22
  5. Step 5: Solve for x
    x = 156,519,867,992.22/345,067.80
  6. Step 6: Final answer
    x = 453,591.64

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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.