Finding the Fourth Proportional to 312,926.08, 431,724.80 and 205,554.56
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Solution
The fourth proportional to 312,926.08, 431,724.80 and 205,554.56 is: 283,590.94
Step by Step Solution
- Step 1: Write the proportion equation
312,926.08 : 431,724.80 = 205,554.56 : x - Step 2: Convert to fraction form
312,926.08/431,724.80 = 205,554.56/x - Step 3: Cross multiply
312,926.08x = 431,724.80 × 205,554.56 - Step 4: Simplify right side
312,926.08x = 88,743,001,305.09 - Step 5: Solve for x
x = 88,743,001,305.09/312,926.08 - Step 6: Final answer
x = 283,590.94
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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.