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Finding the Fourth Proportional to 255,612.64, 352,729.40 and 140,884.97

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Solution

The fourth proportional to 255,612.64, 352,729.40 and 140,884.97 is: 194,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,612.64 : 352,729.40 = 140,884.97 : x
  2. Step 2: Convert to fraction form
    255,612.64/352,729.40 = 140,884.97/x
  3. Step 3: Cross multiply
    255,612.64x = 352,729.40 × 140,884.97
  4. Step 4: Simplify right side
    255,612.64x = 49,694,270,651.27
  5. Step 5: Solve for x
    x = 49,694,270,651.27/255,612.64
  6. Step 6: Final answer
    x = 194,412.41

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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.