Home / 327,247.07-451,378.95-212,320.39

Finding the Fourth Proportional to 327,247.07, 451,378.95 and 212,320.39

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Solution

The fourth proportional to 327,247.07, 451,378.95 and 212,320.39 is: 292,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,247.07 : 451,378.95 = 212,320.39 : x
  2. Step 2: Convert to fraction form
    327,247.07/451,378.95 = 212,320.39/x
  3. Step 3: Cross multiply
    327,247.07x = 451,378.95 × 212,320.39
  4. Step 4: Simplify right side
    327,247.07x = 95,836,954,817.78
  5. Step 5: Solve for x
    x = 95,836,954,817.78/327,247.07
  6. Step 6: Final answer
    x = 292,858.10

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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.