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Finding the Fourth Proportional to 419,831.91, 629,846.28 and 167,127.84

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Solution

The fourth proportional to 419,831.91, 629,846.28 and 167,127.84 is: 250,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,831.91 : 629,846.28 = 167,127.84 : x
  2. Step 2: Convert to fraction form
    419,831.91/629,846.28 = 167,127.84/x
  3. Step 3: Cross multiply
    419,831.91x = 629,846.28 × 167,127.84
  4. Step 4: Simplify right side
    419,831.91x = 105,264,848,308.44
  5. Step 5: Solve for x
    x = 105,264,848,308.44/419,831.91
  6. Step 6: Final answer
    x = 250,730.94

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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.