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Finding the Fourth Proportional to 322,491, 445,073.64 and 195,236.76

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Solution

The fourth proportional to 322,491, 445,073.64 and 195,236.76 is: 269,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,491 : 445,073.64 = 195,236.76 : x
  2. Step 2: Convert to fraction form
    322,491/445,073.64 = 195,236.76/x
  3. Step 3: Cross multiply
    322,491x = 445,073.64 × 195,236.76
  4. Step 4: Simplify right side
    322,491x = 86,894,735,435.01
  5. Step 5: Solve for x
    x = 86,894,735,435.01/322,491
  6. Step 6: Final answer
    x = 269,448.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.