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Finding the Fourth Proportional to 403,581.66, 605,367 and 137,527.62

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Solution

The fourth proportional to 403,581.66, 605,367 and 137,527.62 is: 206,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,581.66 : 605,367 = 137,527.62 : x
  2. Step 2: Convert to fraction form
    403,581.66/605,367 = 137,527.62/x
  3. Step 3: Cross multiply
    403,581.66x = 605,367 × 137,527.62
  4. Step 4: Simplify right side
    403,581.66x = 83,254,682,736.54
  5. Step 5: Solve for x
    x = 83,254,682,736.54/403,581.66
  6. Step 6: Final answer
    x = 206,289.56

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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.