Finding the Fourth Proportional to 290,698.62, 401,197.34 and 161,649.96
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Solution
The fourth proportional to 290,698.62, 401,197.34 and 161,649.96 is: 223,095.43
Step by Step Solution
- Step 1: Write the proportion equation
290,698.62 : 401,197.34 = 161,649.96 : x - Step 2: Convert to fraction form
290,698.62/401,197.34 = 161,649.96/x - Step 3: Cross multiply
290,698.62x = 401,197.34 × 161,649.96 - Step 4: Simplify right side
290,698.62x = 64,853,533,963.11 - Step 5: Solve for x
x = 64,853,533,963.11/290,698.62 - Step 6: Final answer
x = 223,095.43
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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.