Home / 255,277.20-352,287.12-140,555.28

Finding the Fourth Proportional to 255,277.20, 352,287.12 and 140,555.28

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Solution

The fourth proportional to 255,277.20, 352,287.12 and 140,555.28 is: 193,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,277.20 : 352,287.12 = 140,555.28 : x
  2. Step 2: Convert to fraction form
    255,277.20/352,287.12 = 140,555.28/x
  3. Step 3: Cross multiply
    255,277.20x = 352,287.12 × 140,555.28
  4. Step 4: Simplify right side
    255,277.20x = 49,515,814,791.99
  5. Step 5: Solve for x
    x = 49,515,814,791.99/255,277.20
  6. Step 6: Final answer
    x = 193,968.81

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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.