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Finding the Fourth Proportional to 255,230.40, 352,219.41 and 140,520.63

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Solution

The fourth proportional to 255,230.40, 352,219.41 and 140,520.63 is: 193,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,230.40 : 352,219.41 = 140,520.63 : x
  2. Step 2: Convert to fraction form
    255,230.40/352,219.41 = 140,520.63/x
  3. Step 3: Cross multiply
    255,230.40x = 352,219.41 × 140,520.63
  4. Step 4: Simplify right side
    255,230.40x = 49,494,093,391.43
  5. Step 5: Solve for x
    x = 49,494,093,391.43/255,230.40
  6. Step 6: Final answer
    x = 193,919.27

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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.