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Finding the Fourth Proportional to 326,675.62, 489,299.01 and 231,617.67

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Solution

The fourth proportional to 326,675.62, 489,299.01 and 231,617.67 is: 346,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,675.62 : 489,299.01 = 231,617.67 : x
  2. Step 2: Convert to fraction form
    326,675.62/489,299.01 = 231,617.67/x
  3. Step 3: Cross multiply
    326,675.62x = 489,299.01 × 231,617.67
  4. Step 4: Simplify right side
    326,675.62x = 113,330,294,183.01
  5. Step 5: Solve for x
    x = 113,330,294,183.01/326,675.62
  6. Step 6: Final answer
    x = 346,919.96

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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.