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Finding the Fourth Proportional to 259,046.30, 388,007.01 and 125,646.19

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Solution

The fourth proportional to 259,046.30, 388,007.01 and 125,646.19 is: 188,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,046.30 : 388,007.01 = 125,646.19 : x
  2. Step 2: Convert to fraction form
    259,046.30/388,007.01 = 125,646.19/x
  3. Step 3: Cross multiply
    259,046.30x = 388,007.01 × 125,646.19
  4. Step 4: Simplify right side
    259,046.30x = 48,751,601,529.77
  5. Step 5: Solve for x
    x = 48,751,601,529.77/259,046.30
  6. Step 6: Final answer
    x = 188,196.48

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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.