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Finding the Fourth Proportional to 300,635.37, 414,945.09 and 187,436.25

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Solution

The fourth proportional to 300,635.37, 414,945.09 and 187,436.25 is: 258,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,635.37 : 414,945.09 = 187,436.25 : x
  2. Step 2: Convert to fraction form
    300,635.37/414,945.09 = 187,436.25/x
  3. Step 3: Cross multiply
    300,635.37x = 414,945.09 × 187,436.25
  4. Step 4: Simplify right side
    300,635.37x = 77,775,751,625.51
  5. Step 5: Solve for x
    x = 77,775,751,625.51/300,635.37
  6. Step 6: Final answer
    x = 258,704.59

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1.5x scale

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.