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Finding the Fourth Proportional to 255,383.97, 352,426.65 and 140,660.32

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Solution

The fourth proportional to 255,383.97, 352,426.65 and 140,660.32 is: 194,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,383.97 : 352,426.65 = 140,660.32 : x
  2. Step 2: Convert to fraction form
    255,383.97/352,426.65 = 140,660.32/x
  3. Step 3: Cross multiply
    255,383.97x = 352,426.65 × 140,660.32
  4. Step 4: Simplify right side
    255,383.97x = 49,572,445,365.53
  5. Step 5: Solve for x
    x = 49,572,445,365.53/255,383.97
  6. Step 6: Final answer
    x = 194,109.46

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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.