Home / 218,729.43-301,825.04-123,253.11

Finding the Fourth Proportional to 218,729.43, 301,825.04 and 123,253.11

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Solution

The fourth proportional to 218,729.43, 301,825.04 and 123,253.11 is: 170,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,729.43 : 301,825.04 = 123,253.11 : x
  2. Step 2: Convert to fraction form
    218,729.43/301,825.04 = 123,253.11/x
  3. Step 3: Cross multiply
    218,729.43x = 301,825.04 × 123,253.11
  4. Step 4: Simplify right side
    218,729.43x = 37,200,874,239.61
  5. Step 5: Solve for x
    x = 37,200,874,239.61/218,729.43
  6. Step 6: Final answer
    x = 170,077.13

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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.