Finding the Fourth Proportional to 215,975.70, 323,963.55 and 121,497.30
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Solution
The fourth proportional to 215,975.70, 323,963.55 and 121,497.30 is: 182,245.95
Step by Step Solution
- Step 1: Write the proportion equation
215,975.70 : 323,963.55 = 121,497.30 : x - Step 2: Convert to fraction form
215,975.70/323,963.55 = 121,497.30/x - Step 3: Cross multiply
215,975.70x = 323,963.55 × 121,497.30 - Step 4: Simplify right side
215,975.70x = 39,360,696,623.42 - Step 5: Solve for x
x = 39,360,696,623.42/215,975.70 - Step 6: Final answer
x = 182,245.95
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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.