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Finding the Fourth Proportional to 259,625.60, 388,574.40 and 188,345.60

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Solution

The fourth proportional to 259,625.60, 388,574.40 and 188,345.60 is: 281,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,625.60 : 388,574.40 = 188,345.60 : x
  2. Step 2: Convert to fraction form
    259,625.60/388,574.40 = 188,345.60/x
  3. Step 3: Cross multiply
    259,625.60x = 388,574.40 × 188,345.60
  4. Step 4: Simplify right side
    259,625.60x = 73,186,278,512.64
  5. Step 5: Solve for x
    x = 73,186,278,512.64/259,625.60
  6. Step 6: Final answer
    x = 281,891.61

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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.