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Finding the Fourth Proportional to 275,539.73, 380,284.47 and 153,060.44

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Solution

The fourth proportional to 275,539.73, 380,284.47 and 153,060.44 is: 211,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,539.73 : 380,284.47 = 153,060.44 : x
  2. Step 2: Convert to fraction form
    275,539.73/380,284.47 = 153,060.44/x
  3. Step 3: Cross multiply
    275,539.73x = 380,284.47 × 153,060.44
  4. Step 4: Simplify right side
    275,539.73x = 58,206,506,401.94
  5. Step 5: Solve for x
    x = 58,206,506,401.94/275,539.73
  6. Step 6: Final answer
    x = 211,245.43

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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.