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Finding the Fourth Proportional to 275,277.79, 379,805.25 and 160,561.44

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Solution

The fourth proportional to 275,277.79, 379,805.25 and 160,561.44 is: 221,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,277.79 : 379,805.25 = 160,561.44 : x
  2. Step 2: Convert to fraction form
    275,277.79/379,805.25 = 160,561.44/x
  3. Step 3: Cross multiply
    275,277.79x = 379,805.25 × 160,561.44
  4. Step 4: Simplify right side
    275,277.79x = 60,982,078,461.67
  5. Step 5: Solve for x
    x = 60,982,078,461.67/275,277.79
  6. Step 6: Final answer
    x = 221,529.23

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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.