Home / 257,361.48-355,150.26-142,635.24

Finding the Fourth Proportional to 257,361.48, 355,150.26 and 142,635.24

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Solution

The fourth proportional to 257,361.48, 355,150.26 and 142,635.24 is: 196,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,361.48 : 355,150.26 = 142,635.24 : x
  2. Step 2: Convert to fraction form
    257,361.48/355,150.26 = 142,635.24/x
  3. Step 3: Cross multiply
    257,361.48x = 355,150.26 × 142,635.24
  4. Step 4: Simplify right side
    257,361.48x = 50,656,942,571.16
  5. Step 5: Solve for x
    x = 50,656,942,571.16/257,361.48
  6. Step 6: Final answer
    x = 196,831.87

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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.