Finding the Fourth Proportional to 317,626.36, 438,329.86 and 174,392.44
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Solution
The fourth proportional to 317,626.36, 438,329.86 and 174,392.44 is: 240,664.58
Step by Step Solution
- Step 1: Write the proportion equation
317,626.36 : 438,329.86 = 174,392.44 : x - Step 2: Convert to fraction form
317,626.36/438,329.86 = 174,392.44/x - Step 3: Cross multiply
317,626.36x = 438,329.86 × 174,392.44 - Step 4: Simplify right side
317,626.36x = 76,441,413,810.26 - Step 5: Solve for x
x = 76,441,413,810.26/317,626.36 - Step 6: Final answer
x = 240,664.58
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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.