Home / 255,318.45-352,339.97-142,145.25

Finding the Fourth Proportional to 255,318.45, 352,339.97 and 142,145.25

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Solution

The fourth proportional to 255,318.45, 352,339.97 and 142,145.25 is: 196,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,318.45 : 352,339.97 = 142,145.25 : x
  2. Step 2: Convert to fraction form
    255,318.45/352,339.97 = 142,145.25/x
  3. Step 3: Cross multiply
    255,318.45x = 352,339.97 × 142,145.25
  4. Step 4: Simplify right side
    255,318.45x = 50,083,453,120.64
  5. Step 5: Solve for x
    x = 50,083,453,120.64/255,318.45
  6. Step 6: Final answer
    x = 196,160.73

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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.