Finding the Fourth Proportional to 206,485.15, 284,647.89 and 145,948.99
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Solution
The fourth proportional to 206,485.15, 284,647.89 and 145,948.99 is: 201,196.42
Step by Step Solution
- Step 1: Write the proportion equation
206,485.15 : 284,647.89 = 145,948.99 : x - Step 2: Convert to fraction form
206,485.15/284,647.89 = 145,948.99/x - Step 3: Cross multiply
206,485.15x = 284,647.89 × 145,948.99 - Step 4: Simplify right side
206,485.15x = 41,544,072,051.13 - Step 5: Solve for x
x = 41,544,072,051.13/206,485.15 - Step 6: Final answer
x = 201,196.42
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1.5x scale
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.