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Finding the Fourth Proportional to 255,214.85, 382,793.09 and 68,240.93

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Solution

The fourth proportional to 255,214.85, 382,793.09 and 68,240.93 is: 102,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,214.85 : 382,793.09 = 68,240.93 : x
  2. Step 2: Convert to fraction form
    255,214.85/382,793.09 = 68,240.93/x
  3. Step 3: Cross multiply
    255,214.85x = 382,793.09 × 68,240.93
  4. Step 4: Simplify right side
    255,214.85x = 26,122,158,105.57
  5. Step 5: Solve for x
    x = 26,122,158,105.57/255,214.85
  6. Step 6: Final answer
    x = 102,353.60

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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.