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Finding the Fourth Proportional to 275,765.44, 380,594.64 and 154,915.96

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Solution

The fourth proportional to 275,765.44, 380,594.64 and 154,915.96 is: 213,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,765.44 : 380,594.64 = 154,915.96 : x
  2. Step 2: Convert to fraction form
    275,765.44/380,594.64 = 154,915.96/x
  3. Step 3: Cross multiply
    275,765.44x = 380,594.64 × 154,915.96
  4. Step 4: Simplify right side
    275,765.44x = 58,960,184,026.45
  5. Step 5: Solve for x
    x = 58,960,184,026.45/275,765.44
  6. Step 6: Final answer
    x = 213,805.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.