Finding the Fourth Proportional to 281,240.63, 388,102.49 and 160,421.03
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Solution
The fourth proportional to 281,240.63, 388,102.49 and 160,421.03 is: 221,375.55
Step by Step Solution
- Step 1: Write the proportion equation
281,240.63 : 388,102.49 = 160,421.03 : x - Step 2: Convert to fraction form
281,240.63/388,102.49 = 160,421.03/x - Step 3: Cross multiply
281,240.63x = 388,102.49 × 160,421.03 - Step 4: Simplify right side
281,240.63x = 62,259,798,448.75 - Step 5: Solve for x
x = 62,259,798,448.75/281,240.63 - Step 6: Final answer
x = 221,375.55
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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.