Finding the Fourth Proportional to 202,712.69, 279,722.09 and 112,054.05
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Solution
The fourth proportional to 202,712.69, 279,722.09 and 112,054.05 is: 154,622.75
Step by Step Solution
- Step 1: Write the proportion equation
202,712.69 : 279,722.09 = 112,054.05 : x - Step 2: Convert to fraction form
202,712.69/279,722.09 = 112,054.05/x - Step 3: Cross multiply
202,712.69x = 279,722.09 × 112,054.05 - Step 4: Simplify right side
202,712.69x = 31,343,993,339.10 - Step 5: Solve for x
x = 31,343,993,339.10/202,712.69 - Step 6: Final answer
x = 154,622.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.