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Finding the Fourth Proportional to 274,054.58, 378,271.71 and 188,027.57

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Solution

The fourth proportional to 274,054.58, 378,271.71 and 188,027.57 is: 259,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,054.58 : 378,271.71 = 188,027.57 : x
  2. Step 2: Convert to fraction form
    274,054.58/378,271.71 = 188,027.57/x
  3. Step 3: Cross multiply
    274,054.58x = 378,271.71 × 188,027.57
  4. Step 4: Simplify right side
    274,054.58x = 71,125,508,539.69
  5. Step 5: Solve for x
    x = 71,125,508,539.69/274,054.58
  6. Step 6: Final answer
    x = 259,530.45

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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.