Home / 218,409.12-327,504.05-127,254.03

Finding the Fourth Proportional to 218,409.12, 327,504.05 and 127,254.03

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Solution

The fourth proportional to 218,409.12, 327,504.05 and 127,254.03 is: 190,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,409.12 : 327,504.05 = 127,254.03 : x
  2. Step 2: Convert to fraction form
    218,409.12/327,504.05 = 127,254.03/x
  3. Step 3: Cross multiply
    218,409.12x = 327,504.05 × 127,254.03
  4. Step 4: Simplify right side
    218,409.12x = 41,676,207,930.03
  5. Step 5: Solve for x
    x = 41,676,207,930.03/218,409.12
  6. Step 6: Final answer
    x = 190,817.16

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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.