Finding the Fourth Proportional to 317,645.33, 438,349.26 and 181,679.09
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Solution
The fourth proportional to 317,645.33, 438,349.26 and 181,679.09 is: 250,716.40
Step by Step Solution
- Step 1: Write the proportion equation
317,645.33 : 438,349.26 = 181,679.09 : x - Step 2: Convert to fraction form
317,645.33/438,349.26 = 181,679.09/x - Step 3: Cross multiply
317,645.33x = 438,349.26 × 181,679.09 - Step 4: Simplify right side
317,645.33x = 79,638,892,467.23 - Step 5: Solve for x
x = 79,638,892,467.23/317,645.33 - Step 6: Final answer
x = 250,716.40
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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.