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Finding the Fourth Proportional to 255,692.73, 383,538.89 and 68,704.23

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Solution

The fourth proportional to 255,692.73, 383,538.89 and 68,704.23 is: 103,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,692.73 : 383,538.89 = 68,704.23 : x
  2. Step 2: Convert to fraction form
    255,692.73/383,538.89 = 68,704.23/x
  3. Step 3: Cross multiply
    255,692.73x = 383,538.89 × 68,704.23
  4. Step 4: Simplify right side
    255,692.73x = 26,350,744,112.50
  5. Step 5: Solve for x
    x = 26,350,744,112.50/255,692.73
  6. Step 6: Final answer
    x = 103,056.29

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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.