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Finding the Fourth Proportional to 255,065.88, 351,989.26 and 140,351.52

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Solution

The fourth proportional to 255,065.88, 351,989.26 and 140,351.52 is: 193,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,065.88 : 351,989.26 = 140,351.52 : x
  2. Step 2: Convert to fraction form
    255,065.88/351,989.26 = 140,351.52/x
  3. Step 3: Cross multiply
    255,065.88x = 351,989.26 × 140,351.52
  4. Step 4: Simplify right side
    255,065.88x = 49,402,227,664.68
  5. Step 5: Solve for x
    x = 49,402,227,664.68/255,065.88
  6. Step 6: Final answer
    x = 193,684.19

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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.