Finding the Fourth Proportional to 317,629.12, 438,329.06 and 174,398.44
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Solution
The fourth proportional to 317,629.12, 438,329.06 and 174,398.44 is: 240,670.33
Step by Step Solution
- Step 1: Write the proportion equation
317,629.12 : 438,329.06 = 174,398.44 : x - Step 2: Convert to fraction form
317,629.12/438,329.06 = 174,398.44/x - Step 3: Cross multiply
317,629.12x = 438,329.06 × 174,398.44 - Step 4: Simplify right side
317,629.12x = 76,443,904,270.67 - Step 5: Solve for x
x = 76,443,904,270.67/317,629.12 - Step 6: Final answer
x = 240,670.33
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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.