Finding the Fourth Proportional to 343,714.21, 515,448.29 and 119,014.31
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Solution
The fourth proportional to 343,714.21, 515,448.29 and 119,014.31 is: 178,478.87
Step by Step Solution
- Step 1: Write the proportion equation
343,714.21 : 515,448.29 = 119,014.31 : x - Step 2: Convert to fraction form
343,714.21/515,448.29 = 119,014.31/x - Step 3: Cross multiply
343,714.21x = 515,448.29 × 119,014.31 - Step 4: Simplify right side
343,714.21x = 61,345,724,161.19 - Step 5: Solve for x
x = 61,345,724,161.19/343,714.21 - Step 6: Final answer
x = 178,478.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.