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Finding the Fourth Proportional to 255,101.96, 352,043.94 and 140,393.80

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Solution

The fourth proportional to 255,101.96, 352,043.94 and 140,393.80 is: 193,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,101.96 : 352,043.94 = 140,393.80 : x
  2. Step 2: Convert to fraction form
    255,101.96/352,043.94 = 140,393.80/x
  3. Step 3: Cross multiply
    255,101.96x = 352,043.94 × 140,393.80
  4. Step 4: Simplify right side
    255,101.96x = 49,424,786,503.57
  5. Step 5: Solve for x
    x = 49,424,786,503.57/255,101.96
  6. Step 6: Final answer
    x = 193,745.22

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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.