Finding the Fourth Proportional to 206,490.15, 284,654.79 and 145,953.99
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Solution
The fourth proportional to 206,490.15, 284,654.79 and 145,953.99 is: 201,203.31
Step by Step Solution
- Step 1: Write the proportion equation
206,490.15 : 284,654.79 = 145,953.99 : x - Step 2: Convert to fraction form
206,490.15/284,654.79 = 145,953.99/x - Step 3: Cross multiply
206,490.15x = 284,654.79 × 145,953.99 - Step 4: Simplify right side
206,490.15x = 41,546,502,373.11 - Step 5: Solve for x
x = 41,546,502,373.11/206,490.15 - Step 6: Final answer
x = 201,203.31
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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.