Home / 231,321.21-346,021.95-217,149.45

Finding the Fourth Proportional to 231,321.21, 346,021.95 and 217,149.45

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Solution

The fourth proportional to 231,321.21, 346,021.95 and 217,149.45 is: 324,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,321.21 : 346,021.95 = 217,149.45 : x
  2. Step 2: Convert to fraction form
    231,321.21/346,021.95 = 217,149.45/x
  3. Step 3: Cross multiply
    231,321.21x = 346,021.95 × 217,149.45
  4. Step 4: Simplify right side
    231,321.21x = 75,138,476,130.43
  5. Step 5: Solve for x
    x = 75,138,476,130.43/231,321.21
  6. Step 6: Final answer
    x = 324,823.12

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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.