Finding the Third Proportional to 287,138.25 and 421,827.75
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Solution
The third proportional to 287,138.25 and 421,827.75 is: 619,696.79
Step by Step Solution
- Step 1: Write the proportion equation
287,138.25 : 421,827.75 = 421,827.75 : x - Step 2: Convert to fraction form
287,138.25/421,827.75 = 421,827.75/x - Step 3: Cross multiply
287,138.25x = 421,827.75 × 421,827.75 - Step 4: Simplify right side
287,138.25x = 177,938,650,670.06 - Step 5: Solve for x
x = 177,938,650,670.06/287,138.25 - Step 6: Final answer
x = 619,696.79
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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.