Finding the Fourth Proportional to 212,293.48, 318,479.10 and 87,566.44
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Solution
The fourth proportional to 212,293.48, 318,479.10 and 87,566.44 is: 131,365.70
Step by Step Solution
- Step 1: Write the proportion equation
212,293.48 : 318,479.10 = 87,566.44 : x - Step 2: Convert to fraction form
212,293.48/318,479.10 = 87,566.44/x - Step 3: Cross multiply
212,293.48x = 318,479.10 × 87,566.44 - Step 4: Simplify right side
212,293.48x = 27,888,081,001.40 - Step 5: Solve for x
x = 27,888,081,001.40/212,293.48 - Step 6: Final answer
x = 131,365.70
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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.