Finding the Fourth Proportional to 421,649.71, 632,537.08 and 122,092.90
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Solution
The fourth proportional to 421,649.71, 632,537.08 and 122,092.90 is: 183,157.45
Step by Step Solution
- Step 1: Write the proportion equation
421,649.71 : 632,537.08 = 122,092.90 : x - Step 2: Convert to fraction form
421,649.71/632,537.08 = 122,092.90/x - Step 3: Cross multiply
421,649.71x = 632,537.08 × 122,092.90 - Step 4: Simplify right side
421,649.71x = 77,228,284,568.16 - Step 5: Solve for x
x = 77,228,284,568.16/421,649.71 - Step 6: Final answer
x = 183,157.45
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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.