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Finding the Fourth Proportional to 256,181.80, 384,272.70 and 123,029.95

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Solution

The fourth proportional to 256,181.80, 384,272.70 and 123,029.95 is: 184,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,181.80 : 384,272.70 = 123,029.95 : x
  2. Step 2: Convert to fraction form
    256,181.80/384,272.70 = 123,029.95/x
  3. Step 3: Cross multiply
    256,181.80x = 384,272.70 × 123,029.95
  4. Step 4: Simplify right side
    256,181.80x = 47,277,051,067.37
  5. Step 5: Solve for x
    x = 47,277,051,067.37/256,181.80
  6. Step 6: Final answer
    x = 184,544.93

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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.