Finding the Fourth Proportional to 187,685.72, 258,982.62 and 149,541.92
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Solution
The fourth proportional to 187,685.72, 258,982.62 and 149,541.92 is: 206,348.99
Step by Step Solution
- Step 1: Write the proportion equation
187,685.72 : 258,982.62 = 149,541.92 : x - Step 2: Convert to fraction form
187,685.72/258,982.62 = 149,541.92/x - Step 3: Cross multiply
187,685.72x = 258,982.62 × 149,541.92 - Step 4: Simplify right side
187,685.72x = 38,728,758,241.43 - Step 5: Solve for x
x = 38,728,758,241.43/187,685.72 - Step 6: Final answer
x = 206,348.99
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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.