Home / 445,035.31-667,594-145,517.42

Finding the Fourth Proportional to 445,035.31, 667,594 and 145,517.42

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Solution

The fourth proportional to 445,035.31, 667,594 and 145,517.42 is: 218,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,035.31 : 667,594 = 145,517.42 : x
  2. Step 2: Convert to fraction form
    445,035.31/667,594 = 145,517.42/x
  3. Step 3: Cross multiply
    445,035.31x = 667,594 × 145,517.42
  4. Step 4: Simplify right side
    445,035.31x = 97,146,556,487.48
  5. Step 5: Solve for x
    x = 97,146,556,487.48/445,035.31
  6. Step 6: Final answer
    x = 218,289.55

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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.