Home / 319,625.19-479,099.21-139,552.47

Finding the Fourth Proportional to 319,625.19, 479,099.21 and 139,552.47

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Solution

The fourth proportional to 319,625.19, 479,099.21 and 139,552.47 is: 209,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,625.19 : 479,099.21 = 139,552.47 : x
  2. Step 2: Convert to fraction form
    319,625.19/479,099.21 = 139,552.47/x
  3. Step 3: Cross multiply
    319,625.19x = 479,099.21 × 139,552.47
  4. Step 4: Simplify right side
    319,625.19x = 66,859,477,432.79
  5. Step 5: Solve for x
    x = 66,859,477,432.79/319,625.19
  6. Step 6: Final answer
    x = 209,180.88

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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.