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Finding the Fourth Proportional to 255,299.83, 382,920.54 and 68,325.91

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Solution

The fourth proportional to 255,299.83, 382,920.54 and 68,325.91 is: 102,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,299.83 : 382,920.54 = 68,325.91 : x
  2. Step 2: Convert to fraction form
    255,299.83/382,920.54 = 68,325.91/x
  3. Step 3: Cross multiply
    255,299.83x = 382,920.54 × 68,325.91
  4. Step 4: Simplify right side
    255,299.83x = 26,163,394,353.19
  5. Step 5: Solve for x
    x = 26,163,394,353.19/255,299.83
  6. Step 6: Final answer
    x = 102,481.05

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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.