Home / 418,664.26-628,094.40-138,181.24

Finding the Fourth Proportional to 418,664.26, 628,094.40 and 138,181.24

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Solution

The fourth proportional to 418,664.26, 628,094.40 and 138,181.24 is: 207,304.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,664.26 : 628,094.40 = 138,181.24 : x
  2. Step 2: Convert to fraction form
    418,664.26/628,094.40 = 138,181.24/x
  3. Step 3: Cross multiply
    418,664.26x = 628,094.40 × 138,181.24
  4. Step 4: Simplify right side
    418,664.26x = 86,790,863,029.06
  5. Step 5: Solve for x
    x = 86,790,863,029.06/418,664.26
  6. Step 6: Final answer
    x = 207,304.21

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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.