Finding the Fourth Proportional to 422,375.09, 633,669.96 and 122,855.66
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Solution
The fourth proportional to 422,375.09, 633,669.96 and 122,855.66 is: 184,314.70
Step by Step Solution
- Step 1: Write the proportion equation
422,375.09 : 633,669.96 = 122,855.66 : x - Step 2: Convert to fraction form
422,375.09/633,669.96 = 122,855.66/x - Step 3: Cross multiply
422,375.09x = 633,669.96 × 122,855.66 - Step 4: Simplify right side
422,375.09x = 77,849,937,989.62 - Step 5: Solve for x
x = 77,849,937,989.62/422,375.09 - Step 6: Final answer
x = 184,314.70
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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.