Finding the Third Proportional to 311,239.13 and 478,617.19
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Solution
The third proportional to 311,239.13 and 478,617.19 is: 736,007.76
Step by Step Solution
- Step 1: Write the proportion equation
311,239.13 : 478,617.19 = 478,617.19 : x - Step 2: Convert to fraction form
311,239.13/478,617.19 = 478,617.19/x - Step 3: Cross multiply
311,239.13x = 478,617.19 × 478,617.19 - Step 4: Simplify right side
311,239.13x = 229,074,412,170.41 - Step 5: Solve for x
x = 229,074,412,170.41/311,239.13 - Step 6: Final answer
x = 736,007.76
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.