Finding the Fourth Proportional to 317,438.09, 438,069.92 and 174,211.46
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Solution
The fourth proportional to 317,438.09, 438,069.92 and 174,211.46 is: 240,414.75
Step by Step Solution
- Step 1: Write the proportion equation
317,438.09 : 438,069.92 = 174,211.46 : x - Step 2: Convert to fraction form
317,438.09/438,069.92 = 174,211.46/x - Step 3: Cross multiply
317,438.09x = 438,069.92 × 174,211.46 - Step 4: Simplify right side
317,438.09x = 76,316,799,906.58 - Step 5: Solve for x
x = 76,316,799,906.58/317,438.09 - Step 6: Final answer
x = 240,414.75
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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.