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Finding the Fourth Proportional to 367,677.44, 551,392.14 and 139,919

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Solution

The fourth proportional to 367,677.44, 551,392.14 and 139,919 is: 209,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,677.44 : 551,392.14 = 139,919 : x
  2. Step 2: Convert to fraction form
    367,677.44/551,392.14 = 139,919/x
  3. Step 3: Cross multiply
    367,677.44x = 551,392.14 × 139,919
  4. Step 4: Simplify right side
    367,677.44x = 77,150,236,836.66
  5. Step 5: Solve for x
    x = 77,150,236,836.66/367,677.44
  6. Step 6: Final answer
    x = 209,831.30

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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.