Finding the Fourth Proportional to 229,979.70, 317,364.21 and 129,358.26
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Solution
The fourth proportional to 229,979.70, 317,364.21 and 129,358.26 is: 178,510.02
Step by Step Solution
- Step 1: Write the proportion equation
229,979.70 : 317,364.21 = 129,358.26 : x - Step 2: Convert to fraction form
229,979.70/317,364.21 = 129,358.26/x - Step 3: Cross multiply
229,979.70x = 317,364.21 × 129,358.26 - Step 4: Simplify right side
229,979.70x = 41,053,681,991.87 - Step 5: Solve for x
x = 41,053,681,991.87/229,979.70 - Step 6: Final answer
x = 178,510.02
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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.