Home / 251,321.28-346,500-205,831.68

Finding the Fourth Proportional to 251,321.28, 346,500 and 205,831.68

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Solution

The fourth proportional to 251,321.28, 346,500 and 205,831.68 is: 283,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,321.28 : 346,500 = 205,831.68 : x
  2. Step 2: Convert to fraction form
    251,321.28/346,500 = 205,831.68/x
  3. Step 3: Cross multiply
    251,321.28x = 346,500 × 205,831.68
  4. Step 4: Simplify right side
    251,321.28x = 71,320,677,120
  5. Step 5: Solve for x
    x = 71,320,677,120/251,321.28
  6. Step 6: Final answer
    x = 283,782.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.