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Finding the Fourth Proportional to 255,625.75, 352,766 and 140,908.81

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Solution

The fourth proportional to 255,625.75, 352,766 and 140,908.81 is: 194,455.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,625.75 : 352,766 = 140,908.81 : x
  2. Step 2: Convert to fraction form
    255,625.75/352,766 = 140,908.81/x
  3. Step 3: Cross multiply
    255,625.75x = 352,766 × 140,908.81
  4. Step 4: Simplify right side
    255,625.75x = 49,707,837,268.46
  5. Step 5: Solve for x
    x = 49,707,837,268.46/255,625.75
  6. Step 6: Final answer
    x = 194,455.52

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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.