Finding the Fourth Proportional to 212,610.53, 318,916.22 and 199,619.75
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Solution
The fourth proportional to 212,610.53, 318,916.22 and 199,619.75 is: 299,430.02
Step by Step Solution
- Step 1: Write the proportion equation
212,610.53 : 318,916.22 = 199,619.75 : x - Step 2: Convert to fraction form
212,610.53/318,916.22 = 199,619.75/x - Step 3: Cross multiply
212,610.53x = 318,916.22 × 199,619.75 - Step 4: Simplify right side
212,610.53x = 63,661,973,514.67 - Step 5: Solve for x
x = 63,661,973,514.67/212,610.53 - Step 6: Final answer
x = 299,430.02
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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.