Home / 438,878.07-658,481.13-172,824.05

Finding the Fourth Proportional to 438,878.07, 658,481.13 and 172,824.05

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Solution

The fourth proportional to 438,878.07, 658,481.13 and 172,824.05 is: 259,300.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,878.07 : 658,481.13 = 172,824.05 : x
  2. Step 2: Convert to fraction form
    438,878.07/658,481.13 = 172,824.05/x
  3. Step 3: Cross multiply
    438,878.07x = 658,481.13 × 172,824.05
  4. Step 4: Simplify right side
    438,878.07x = 113,801,375,735.18
  5. Step 5: Solve for x
    x = 113,801,375,735.18/438,878.07
  6. Step 6: Final answer
    x = 259,300.67

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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.