Finding the Fourth Proportional to 312,324.48, 468,518.16 and 87,685.44
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Solution
The fourth proportional to 312,324.48, 468,518.16 and 87,685.44 is: 131,536.99
Step by Step Solution
- Step 1: Write the proportion equation
312,324.48 : 468,518.16 = 87,685.44 : x - Step 2: Convert to fraction form
312,324.48/468,518.16 = 87,685.44/x - Step 3: Cross multiply
312,324.48x = 468,518.16 × 87,685.44 - Step 4: Simplify right side
312,324.48x = 41,082,221,007.59 - Step 5: Solve for x
x = 41,082,221,007.59/312,324.48 - Step 6: Final answer
x = 131,536.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.