Finding the Fourth Proportional to 212,447.09, 318,670.02 and 145,684.67
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Solution
The fourth proportional to 212,447.09, 318,670.02 and 145,684.67 is: 218,526.58
Step by Step Solution
- Step 1: Write the proportion equation
212,447.09 : 318,670.02 = 145,684.67 : x - Step 2: Convert to fraction form
212,447.09/318,670.02 = 145,684.67/x - Step 3: Cross multiply
212,447.09x = 318,670.02 × 145,684.67 - Step 4: Simplify right side
212,447.09x = 46,425,335,109.24 - Step 5: Solve for x
x = 46,425,335,109.24/212,447.09 - Step 6: Final answer
x = 218,526.58
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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.