Home / 309,180.75-426,696.91-173,213.82

Finding the Fourth Proportional to 309,180.75, 426,696.91 and 173,213.82

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Solution

The fourth proportional to 309,180.75, 426,696.91 and 173,213.82 is: 239,050.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,180.75 : 426,696.91 = 173,213.82 : x
  2. Step 2: Convert to fraction form
    309,180.75/426,696.91 = 173,213.82/x
  3. Step 3: Cross multiply
    309,180.75x = 426,696.91 × 173,213.82
  4. Step 4: Simplify right side
    309,180.75x = 73,909,801,104.50
  5. Step 5: Solve for x
    x = 73,909,801,104.50/309,180.75
  6. Step 6: Final answer
    x = 239,050.46

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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.