Finding the Fourth Proportional to 290,649.57, 401,133.99 and 163,325.18
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Solution
The fourth proportional to 290,649.57, 401,133.99 and 163,325.18 is: 225,409.86
Step by Step Solution
- Step 1: Write the proportion equation
290,649.57 : 401,133.99 = 163,325.18 : x - Step 2: Convert to fraction form
290,649.57/401,133.99 = 163,325.18/x - Step 3: Cross multiply
290,649.57x = 401,133.99 × 163,325.18 - Step 4: Simplify right side
290,649.57x = 65,515,279,115.20 - Step 5: Solve for x
x = 65,515,279,115.20/290,649.57 - Step 6: Final answer
x = 225,409.86
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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.