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Finding the Fourth Proportional to 255,839.66, 353,064.37 and 141,121.79

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Solution

The fourth proportional to 255,839.66, 353,064.37 and 141,121.79 is: 194,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,839.66 : 353,064.37 = 141,121.79 : x
  2. Step 2: Convert to fraction form
    255,839.66/353,064.37 = 141,121.79/x
  3. Step 3: Cross multiply
    255,839.66x = 353,064.37 × 141,121.79
  4. Step 4: Simplify right side
    255,839.66x = 49,825,073,761.50
  5. Step 5: Solve for x
    x = 49,825,073,761.50/255,839.66
  6. Step 6: Final answer
    x = 194,751.18

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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.