Finding the Fourth Proportional to 405,020.96, 558,918.09 and 223,728.99
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Solution
The fourth proportional to 405,020.96, 558,918.09 and 223,728.99 is: 308,740.02
Step by Step Solution
- Step 1: Write the proportion equation
405,020.96 : 558,918.09 = 223,728.99 : x - Step 2: Convert to fraction form
405,020.96/558,918.09 = 223,728.99/x - Step 3: Cross multiply
405,020.96x = 558,918.09 × 223,728.99 - Step 4: Simplify right side
405,020.96x = 125,046,177,672.49 - Step 5: Solve for x
x = 125,046,177,672.49/405,020.96 - Step 6: Final answer
x = 308,740.02
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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.