Finding the Fourth Proportional to 229,959.10, 317,343.09 and 129,357.10
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Solution
The fourth proportional to 229,959.10, 317,343.09 and 129,357.10 is: 178,512.53
Step by Step Solution
- Step 1: Write the proportion equation
229,959.10 : 317,343.09 = 129,357.10 : x - Step 2: Convert to fraction form
229,959.10/317,343.09 = 129,357.10/x - Step 3: Cross multiply
229,959.10x = 317,343.09 × 129,357.10 - Step 4: Simplify right side
229,959.10x = 41,050,581,827.44 - Step 5: Solve for x
x = 41,050,581,827.44/229,959.10 - Step 6: Final answer
x = 178,512.53
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1.5x scale
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.