Home / 327,983.60-492,099.30-128,446.56

Finding the Fourth Proportional to 327,983.60, 492,099.30 and 128,446.56

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Solution

The fourth proportional to 327,983.60, 492,099.30 and 128,446.56 is: 192,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,983.60 : 492,099.30 = 128,446.56 : x
  2. Step 2: Convert to fraction form
    327,983.60/492,099.30 = 128,446.56/x
  3. Step 3: Cross multiply
    327,983.60x = 492,099.30 × 128,446.56
  4. Step 4: Simplify right side
    327,983.60x = 63,208,462,263.41
  5. Step 5: Solve for x
    x = 63,208,462,263.41/327,983.60
  6. Step 6: Final answer
    x = 192,718.36

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1.5x scale

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.