Home / 443,021.60-664,634.16-127,481.12

Finding the Fourth Proportional to 443,021.60, 664,634.16 and 127,481.12

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Solution

The fourth proportional to 443,021.60, 664,634.16 and 127,481.12 is: 191,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,021.60 : 664,634.16 = 127,481.12 : x
  2. Step 2: Convert to fraction form
    443,021.60/664,634.16 = 127,481.12/x
  3. Step 3: Cross multiply
    443,021.60x = 664,634.16 × 127,481.12
  4. Step 4: Simplify right side
    443,021.60x = 84,728,307,107.06
  5. Step 5: Solve for x
    x = 84,728,307,107.06/443,021.60
  6. Step 6: Final answer
    x = 191,250.96

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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.