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Finding the Fourth Proportional to 275,151.60, 385,605.90 and 275,151.60

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Solution

The fourth proportional to 275,151.60, 385,605.90 and 275,151.60 is: 385,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,151.60 : 385,605.90 = 275,151.60 : x
  2. Step 2: Convert to fraction form
    275,151.60/385,605.90 = 275,151.60/x
  3. Step 3: Cross multiply
    275,151.60x = 385,605.90 × 275,151.60
  4. Step 4: Simplify right side
    275,151.60x = 106,100,080,354.44
  5. Step 5: Solve for x
    x = 106,100,080,354.44/275,151.60
  6. Step 6: Final answer
    x = 385,605.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.