Home / 218,128.50-327,196.86-68,365.48

Finding the Fourth Proportional to 218,128.50, 327,196.86 and 68,365.48

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Solution

The fourth proportional to 218,128.50, 327,196.86 and 68,365.48 is: 102,549.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,128.50 : 327,196.86 = 68,365.48 : x
  2. Step 2: Convert to fraction form
    218,128.50/327,196.86 = 68,365.48/x
  3. Step 3: Cross multiply
    218,128.50x = 327,196.86 × 68,365.48
  4. Step 4: Simplify right side
    218,128.50x = 22,368,970,388.39
  5. Step 5: Solve for x
    x = 22,368,970,388.39/218,128.50
  6. Step 6: Final answer
    x = 102,549.51

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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.