Home / 252,278.10-378,408.96-102,474.06

Finding the Fourth Proportional to 252,278.10, 378,408.96 and 102,474.06

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Solution

The fourth proportional to 252,278.10, 378,408.96 and 102,474.06 is: 153,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,278.10 : 378,408.96 = 102,474.06 : x
  2. Step 2: Convert to fraction form
    252,278.10/378,408.96 = 102,474.06/x
  3. Step 3: Cross multiply
    252,278.10x = 378,408.96 × 102,474.06
  4. Step 4: Simplify right side
    252,278.10x = 38,777,102,471.58
  5. Step 5: Solve for x
    x = 38,777,102,471.58/252,278.10
  6. Step 6: Final answer
    x = 153,707.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.