Finding the Fourth Proportional to 236,570.49, 326,474.55 and 129,147.48
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Solution
The fourth proportional to 236,570.49, 326,474.55 and 129,147.48 is: 178,227.49
Step by Step Solution
- Step 1: Write the proportion equation
236,570.49 : 326,474.55 = 129,147.48 : x - Step 2: Convert to fraction form
236,570.49/326,474.55 = 129,147.48/x - Step 3: Cross multiply
236,570.49x = 326,474.55 × 129,147.48 - Step 4: Simplify right side
236,570.49x = 42,163,365,416.63 - Step 5: Solve for x
x = 42,163,365,416.63/236,570.49 - Step 6: Final answer
x = 178,227.49
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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.