Home / 272,212.44-408,401.55-139,186.14

Finding the Fourth Proportional to 272,212.44, 408,401.55 and 139,186.14

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Solution

The fourth proportional to 272,212.44, 408,401.55 and 139,186.14 is: 208,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,212.44 : 408,401.55 = 139,186.14 : x
  2. Step 2: Convert to fraction form
    272,212.44/408,401.55 = 139,186.14/x
  3. Step 3: Cross multiply
    272,212.44x = 408,401.55 × 139,186.14
  4. Step 4: Simplify right side
    272,212.44x = 56,843,835,314.52
  5. Step 5: Solve for x
    x = 56,843,835,314.52/272,212.44
  6. Step 6: Final answer
    x = 208,821.59

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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.