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Finding the Fourth Proportional to 617,135.80, 925,522.26 and 262,147

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Solution

The fourth proportional to 617,135.80, 925,522.26 and 262,147 is: 393,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,135.80 : 925,522.26 = 262,147 : x
  2. Step 2: Convert to fraction form
    617,135.80/925,522.26 = 262,147/x
  3. Step 3: Cross multiply
    617,135.80x = 925,522.26 × 262,147
  4. Step 4: Simplify right side
    617,135.80x = 242,622,883,892.22
  5. Step 5: Solve for x
    x = 242,622,883,892.22/617,135.80
  6. Step 6: Final answer
    x = 393,143.43

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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.