Home / 367,380.20-551,076.14-139,679.29

Finding the Fourth Proportional to 367,380.20, 551,076.14 and 139,679.29

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Solution

The fourth proportional to 367,380.20, 551,076.14 and 139,679.29 is: 209,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,380.20 : 551,076.14 = 139,679.29 : x
  2. Step 2: Convert to fraction form
    367,380.20/551,076.14 = 139,679.29/x
  3. Step 3: Cross multiply
    367,380.20x = 551,076.14 × 139,679.29
  4. Step 4: Simplify right side
    367,380.20x = 76,973,922,942.65
  5. Step 5: Solve for x
    x = 76,973,922,942.65/367,380.20
  6. Step 6: Final answer
    x = 209,521.15

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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.