Home / 327,129.15-451,293.52-218,128.39

Finding the Fourth Proportional to 327,129.15, 451,293.52 and 218,128.39

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Solution

The fourth proportional to 327,129.15, 451,293.52 and 218,128.39 is: 300,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,129.15 : 451,293.52 = 218,128.39 : x
  2. Step 2: Convert to fraction form
    327,129.15/451,293.52 = 218,128.39/x
  3. Step 3: Cross multiply
    327,129.15x = 451,293.52 × 218,128.39
  4. Step 4: Simplify right side
    327,129.15x = 98,439,927,937.53
  5. Step 5: Solve for x
    x = 98,439,927,937.53/327,129.15
  6. Step 6: Final answer
    x = 300,920.68

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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.