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Finding the Fourth Proportional to 255,687.67, 352,851.34 and 140,970.36

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Solution

The fourth proportional to 255,687.67, 352,851.34 and 140,970.36 is: 194,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,687.67 : 352,851.34 = 140,970.36 : x
  2. Step 2: Convert to fraction form
    255,687.67/352,851.34 = 140,970.36/x
  3. Step 3: Cross multiply
    255,687.67x = 352,851.34 × 140,970.36
  4. Step 4: Simplify right side
    255,687.67x = 49,741,580,426.28
  5. Step 5: Solve for x
    x = 49,741,580,426.28/255,687.67
  6. Step 6: Final answer
    x = 194,540.40

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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.