Finding the Fourth Proportional to 226,580.40, 312,689.18 and 129,802.96
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Solution
The fourth proportional to 226,580.40, 312,689.18 and 129,802.96 is: 179,132.79
Step by Step Solution
- Step 1: Write the proportion equation
226,580.40 : 312,689.18 = 129,802.96 : x - Step 2: Convert to fraction form
226,580.40/312,689.18 = 129,802.96/x - Step 3: Cross multiply
226,580.40x = 312,689.18 × 129,802.96 - Step 4: Simplify right side
226,580.40x = 40,587,978,911.51 - Step 5: Solve for x
x = 40,587,978,911.51/226,580.40 - Step 6: Final answer
x = 179,132.79
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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.