Finding the Fourth Proportional to 229,976.60, 317,367.18 and 129,374.60
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Solution
The fourth proportional to 229,976.60, 317,367.18 and 129,374.60 is: 178,536.65
Step by Step Solution
- Step 1: Write the proportion equation
229,976.60 : 317,367.18 = 129,374.60 : x - Step 2: Convert to fraction form
229,976.60/317,367.18 = 129,374.60/x - Step 3: Cross multiply
229,976.60x = 317,367.18 × 129,374.60 - Step 4: Simplify right side
229,976.60x = 41,059,251,965.63 - Step 5: Solve for x
x = 41,059,251,965.63/229,976.60 - Step 6: Final answer
x = 178,536.65
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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.