Finding the Fourth Proportional to 266,608.05, 367,680.65 and 221,214.09
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Solution
The fourth proportional to 266,608.05, 367,680.65 and 221,214.09 is: 305,077.59
Step by Step Solution
- Step 1: Write the proportion equation
266,608.05 : 367,680.65 = 221,214.09 : x - Step 2: Convert to fraction form
266,608.05/367,680.65 = 221,214.09/x - Step 3: Cross multiply
266,608.05x = 367,680.65 × 221,214.09 - Step 4: Simplify right side
266,608.05x = 81,336,138,561.96 - Step 5: Solve for x
x = 81,336,138,561.96/266,608.05 - Step 6: Final answer
x = 305,077.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.