Home / 218,317.09-327,456.88-132,905.78

Finding the Fourth Proportional to 218,317.09, 327,456.88 and 132,905.78

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Solution

The fourth proportional to 218,317.09, 327,456.88 and 132,905.78 is: 199,347.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,317.09 : 327,456.88 = 132,905.78 : x
  2. Step 2: Convert to fraction form
    218,317.09/327,456.88 = 132,905.78/x
  3. Step 3: Cross multiply
    218,317.09x = 327,456.88 × 132,905.78
  4. Step 4: Simplify right side
    218,317.09x = 43,520,911,607.28
  5. Step 5: Solve for x
    x = 43,520,911,607.28/218,317.09
  6. Step 6: Final answer
    x = 199,347.25

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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.