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Finding the Fourth Proportional to 275,762.73, 380,588.12 and 154,903.98

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Solution

The fourth proportional to 275,762.73, 380,588.12 and 154,903.98 is: 213,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,762.73 : 380,588.12 = 154,903.98 : x
  2. Step 2: Convert to fraction form
    275,762.73/380,588.12 = 154,903.98/x
  3. Step 3: Cross multiply
    275,762.73x = 380,588.12 × 154,903.98
  4. Step 4: Simplify right side
    275,762.73x = 58,954,614,528.72
  5. Step 5: Solve for x
    x = 58,954,614,528.72/275,762.73
  6. Step 6: Final answer
    x = 213,787.46

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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.