Finding the Fourth Proportional to 317,471.22, 438,109.01 and 174,233.62
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Solution
The fourth proportional to 317,471.22, 438,109.01 and 174,233.62 is: 240,441.70
Step by Step Solution
- Step 1: Write the proportion equation
317,471.22 : 438,109.01 = 174,233.62 : x - Step 2: Convert to fraction form
317,471.22/438,109.01 = 174,233.62/x - Step 3: Cross multiply
317,471.22x = 438,109.01 × 174,233.62 - Step 4: Simplify right side
317,471.22x = 76,333,318,766.92 - Step 5: Solve for x
x = 76,333,318,766.92/317,471.22 - Step 6: Final answer
x = 240,441.70
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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.