Finding the Fourth Proportional to 317,445.08, 438,079.56 and 174,218.44
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Solution
The fourth proportional to 317,445.08, 438,079.56 and 174,218.44 is: 240,424.38
Step by Step Solution
- Step 1: Write the proportion equation
317,445.08 : 438,079.56 = 174,218.44 : x - Step 2: Convert to fraction form
317,445.08/438,079.56 = 174,218.44/x - Step 3: Cross multiply
317,445.08x = 438,079.56 × 174,218.44 - Step 4: Simplify right side
317,445.08x = 76,321,537,539.09 - Step 5: Solve for x
x = 76,321,537,539.09/317,445.08 - Step 6: Final answer
x = 240,424.38
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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.