Finding the Fourth Proportional to 258,584.56, 356,844.36 and 145,408.12
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Solution
The fourth proportional to 258,584.56, 356,844.36 and 145,408.12 is: 200,661.89
Step by Step Solution
- Step 1: Write the proportion equation
258,584.56 : 356,844.36 = 145,408.12 : x - Step 2: Convert to fraction form
258,584.56/356,844.36 = 145,408.12/x - Step 3: Cross multiply
258,584.56x = 356,844.36 × 145,408.12 - Step 4: Simplify right side
258,584.56x = 51,888,067,520.20 - Step 5: Solve for x
x = 51,888,067,520.20/258,584.56 - Step 6: Final answer
x = 200,661.89
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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.