Home / 274,620.42-378,977.13-153,766.98

Finding the Fourth Proportional to 274,620.42, 378,977.13 and 153,766.98

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Solution

The fourth proportional to 274,620.42, 378,977.13 and 153,766.98 is: 212,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,620.42 : 378,977.13 = 153,766.98 : x
  2. Step 2: Convert to fraction form
    274,620.42/378,977.13 = 153,766.98/x
  3. Step 3: Cross multiply
    274,620.42x = 378,977.13 × 153,766.98
  4. Step 4: Simplify right side
    274,620.42x = 58,274,168,769.17
  5. Step 5: Solve for x
    x = 58,274,168,769.17/274,620.42
  6. Step 6: Final answer
    x = 212,198.96

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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.