Home / 275,826.81-380,679.37-154,977.44

Finding the Fourth Proportional to 275,826.81, 380,679.37 and 154,977.44

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Solution

The fourth proportional to 275,826.81, 380,679.37 and 154,977.44 is: 213,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,826.81 : 380,679.37 = 154,977.44 : x
  2. Step 2: Convert to fraction form
    275,826.81/380,679.37 = 154,977.44/x
  3. Step 3: Cross multiply
    275,826.81x = 380,679.37 × 154,977.44
  4. Step 4: Simplify right side
    275,826.81x = 58,996,714,787.67
  5. Step 5: Solve for x
    x = 58,996,714,787.67/275,826.81
  6. Step 6: Final answer
    x = 213,890.43

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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.