Home / 378,831.63-568,579.68-154,191.36

Finding the Fourth Proportional to 378,831.63, 568,579.68 and 154,191.36

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Solution

The fourth proportional to 378,831.63, 568,579.68 and 154,191.36 is: 231,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,831.63 : 568,579.68 = 154,191.36 : x
  2. Step 2: Convert to fraction form
    378,831.63/568,579.68 = 154,191.36/x
  3. Step 3: Cross multiply
    378,831.63x = 568,579.68 × 154,191.36
  4. Step 4: Simplify right side
    378,831.63x = 87,670,074,127.56
  5. Step 5: Solve for x
    x = 87,670,074,127.56/378,831.63
  6. Step 6: Final answer
    x = 231,422.27

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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.