Finding the Fourth Proportional to 236,687.67, 355,034.64 and 78,916.17
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Solution
The fourth proportional to 236,687.67, 355,034.64 and 78,916.17 is: 118,375.31
Step by Step Solution
- Step 1: Write the proportion equation
236,687.67 : 355,034.64 = 78,916.17 : x - Step 2: Convert to fraction form
236,687.67/355,034.64 = 78,916.17/x - Step 3: Cross multiply
236,687.67x = 355,034.64 × 78,916.17 - Step 4: Simplify right side
236,687.67x = 28,017,975,633.44 - Step 5: Solve for x
x = 28,017,975,633.44/236,687.67 - Step 6: Final answer
x = 118,375.31
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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.