Home / 255,438.22-352,515.69-142,260.97

Finding the Fourth Proportional to 255,438.22, 352,515.69 and 142,260.97

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Solution

The fourth proportional to 255,438.22, 352,515.69 and 142,260.97 is: 196,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,438.22 : 352,515.69 = 142,260.97 : x
  2. Step 2: Convert to fraction form
    255,438.22/352,515.69 = 142,260.97/x
  3. Step 3: Cross multiply
    255,438.22x = 352,515.69 × 142,260.97
  4. Step 4: Simplify right side
    255,438.22x = 50,149,223,999.62
  5. Step 5: Solve for x
    x = 50,149,223,999.62/255,438.22
  6. Step 6: Final answer
    x = 196,326.23

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1.5x scale

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.