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Finding the Fourth Proportional to 275,561.94, 380,249.21 and 154,675.52

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Solution

The fourth proportional to 275,561.94, 380,249.21 and 154,675.52 is: 213,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,561.94 : 380,249.21 = 154,675.52 : x
  2. Step 2: Convert to fraction form
    275,561.94/380,249.21 = 154,675.52/x
  3. Step 3: Cross multiply
    275,561.94x = 380,249.21 × 154,675.52
  4. Step 4: Simplify right side
    275,561.94x = 58,815,244,286.34
  5. Step 5: Solve for x
    x = 58,815,244,286.34/275,561.94
  6. Step 6: Final answer
    x = 213,437.47

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1.5x scale

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.