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Finding the Fourth Proportional to 255,889, 383,833.52 and 68,900.52

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Solution

The fourth proportional to 255,889, 383,833.52 and 68,900.52 is: 103,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,889 : 383,833.52 = 68,900.52 : x
  2. Step 2: Convert to fraction form
    255,889/383,833.52 = 68,900.52/x
  3. Step 3: Cross multiply
    255,889x = 383,833.52 × 68,900.52
  4. Step 4: Simplify right side
    255,889x = 26,446,329,121.43
  5. Step 5: Solve for x
    x = 26,446,329,121.43/255,889
  6. Step 6: Final answer
    x = 103,350.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.