Finding the Fourth Proportional to 431,161.23, 646,711.74 and 161,238.03
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Solution
The fourth proportional to 431,161.23, 646,711.74 and 161,238.03 is: 241,845.79
Step by Step Solution
- Step 1: Write the proportion equation
431,161.23 : 646,711.74 = 161,238.03 : x - Step 2: Convert to fraction form
431,161.23/646,711.74 = 161,238.03/x - Step 3: Cross multiply
431,161.23x = 646,711.74 × 161,238.03 - Step 4: Simplify right side
431,161.23x = 104,274,526,935.47 - Step 5: Solve for x
x = 104,274,526,935.47/431,161.23 - Step 6: Final answer
x = 241,845.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.