Finding the Fourth Proportional to 258,661.48, 387,431.44 and 125,261.99
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Solution
The fourth proportional to 258,661.48, 387,431.44 and 125,261.99 is: 187,621.42
Step by Step Solution
- Step 1: Write the proportion equation
258,661.48 : 387,431.44 = 125,261.99 : x - Step 2: Convert to fraction form
258,661.48/387,431.44 = 125,261.99/x - Step 3: Cross multiply
258,661.48x = 387,431.44 × 125,261.99 - Step 4: Simplify right side
258,661.48x = 48,530,433,162.97 - Step 5: Solve for x
x = 48,530,433,162.97/258,661.48 - Step 6: Final answer
x = 187,621.42
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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.