Finding the Fourth Proportional to 229,911.62, 317,274.98 and 129,309.62
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Solution
The fourth proportional to 229,911.62, 317,274.98 and 129,309.62 is: 178,445.56
Step by Step Solution
- Step 1: Write the proportion equation
229,911.62 : 317,274.98 = 129,309.62 : x - Step 2: Convert to fraction form
229,911.62/317,274.98 = 129,309.62/x - Step 3: Cross multiply
229,911.62x = 317,274.98 × 129,309.62 - Step 4: Simplify right side
229,911.62x = 41,026,707,099.31 - Step 5: Solve for x
x = 41,026,707,099.31/229,911.62 - Step 6: Final answer
x = 178,445.56
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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.