Home / 218,237.22-327,435.80-91,909.27

Finding the Fourth Proportional to 218,237.22, 327,435.80 and 91,909.27

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Solution

The fourth proportional to 218,237.22, 327,435.80 and 91,909.27 is: 137,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,237.22 : 327,435.80 = 91,909.27 : x
  2. Step 2: Convert to fraction form
    218,237.22/327,435.80 = 91,909.27/x
  3. Step 3: Cross multiply
    218,237.22x = 327,435.80 × 91,909.27
  4. Step 4: Simplify right side
    218,237.22x = 30,094,385,349.87
  5. Step 5: Solve for x
    x = 30,094,385,349.87/218,237.22
  6. Step 6: Final answer
    x = 137,897.58

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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.