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Finding the Fourth Proportional to 275,782.44, 380,559.27 and 154,943.84

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Solution

The fourth proportional to 275,782.44, 380,559.27 and 154,943.84 is: 213,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,782.44 : 380,559.27 = 154,943.84 : x
  2. Step 2: Convert to fraction form
    275,782.44/380,559.27 = 154,943.84/x
  3. Step 3: Cross multiply
    275,782.44x = 380,559.27 × 154,943.84
  4. Step 4: Simplify right side
    275,782.44x = 58,965,314,641.40
  5. Step 5: Solve for x
    x = 58,965,314,641.40/275,782.44
  6. Step 6: Final answer
    x = 213,810.98

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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.