Home / 305,942.56-458,756.27-137,318.33

Finding the Fourth Proportional to 305,942.56, 458,756.27 and 137,318.33

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Solution

The fourth proportional to 305,942.56, 458,756.27 and 137,318.33 is: 205,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,942.56 : 458,756.27 = 137,318.33 : x
  2. Step 2: Convert to fraction form
    305,942.56/458,756.27 = 137,318.33/x
  3. Step 3: Cross multiply
    305,942.56x = 458,756.27 × 137,318.33
  4. Step 4: Simplify right side
    305,942.56x = 62,995,646,621.09
  5. Step 5: Solve for x
    x = 62,995,646,621.09/305,942.56
  6. Step 6: Final answer
    x = 205,906.78

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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.