Finding the Fourth Proportional to 317,522.75, 438,187.05 and 174,296.12
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Solution
The fourth proportional to 317,522.75, 438,187.05 and 174,296.12 is: 240,531.75
Step by Step Solution
- Step 1: Write the proportion equation
317,522.75 : 438,187.05 = 174,296.12 : x - Step 2: Convert to fraction form
317,522.75/438,187.05 = 174,296.12/x - Step 3: Cross multiply
317,522.75x = 438,187.05 × 174,296.12 - Step 4: Simplify right side
317,522.75x = 76,374,302,649.25 - Step 5: Solve for x
x = 76,374,302,649.25/317,522.75 - Step 6: Final answer
x = 240,531.75
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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.