Finding the Fourth Proportional to 252,616.34, 378,881.44 and 84,117.56
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Solution
The fourth proportional to 252,616.34, 378,881.44 and 84,117.56 is: 126,161.99
Step by Step Solution
- Step 1: Write the proportion equation
252,616.34 : 378,881.44 = 84,117.56 : x - Step 2: Convert to fraction form
252,616.34/378,881.44 = 84,117.56/x - Step 3: Cross multiply
252,616.34x = 378,881.44 × 84,117.56 - Step 4: Simplify right side
252,616.34x = 31,870,580,157.39 - Step 5: Solve for x
x = 31,870,580,157.39/252,616.34 - Step 6: Final answer
x = 126,161.99
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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.