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Finding the Fourth Proportional to 255,651.71, 352,801.10 and 142,481.75

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Solution

The fourth proportional to 255,651.71, 352,801.10 and 142,481.75 is: 196,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,651.71 : 352,801.10 = 142,481.75 : x
  2. Step 2: Convert to fraction form
    255,651.71/352,801.10 = 142,481.75/x
  3. Step 3: Cross multiply
    255,651.71x = 352,801.10 × 142,481.75
  4. Step 4: Simplify right side
    255,651.71x = 50,267,716,722.12
  5. Step 5: Solve for x
    x = 50,267,716,722.12/255,651.71
  6. Step 6: Final answer
    x = 196,625.78

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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.