Finding the Third Proportional to 310,787.72 and 438,675.09
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Solution
The third proportional to 310,787.72 and 438,675.09 is: 619,187.39
Step by Step Solution
- Step 1: Write the proportion equation
310,787.72 : 438,675.09 = 438,675.09 : x - Step 2: Convert to fraction form
310,787.72/438,675.09 = 438,675.09/x - Step 3: Cross multiply
310,787.72x = 438,675.09 × 438,675.09 - Step 4: Simplify right side
310,787.72x = 192,435,837,876.57 - Step 5: Solve for x
x = 192,435,837,876.57/310,787.72 - Step 6: Final answer
x = 619,187.39
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These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.