Finding the Fourth Proportional to 380,714.67, 525,442.19 and 219,538.23
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Solution
The fourth proportional to 380,714.67, 525,442.19 and 219,538.23 is: 302,995.02
Step by Step Solution
- Step 1: Write the proportion equation
380,714.67 : 525,442.19 = 219,538.23 : x - Step 2: Convert to fraction form
380,714.67/525,442.19 = 219,538.23/x - Step 3: Cross multiply
380,714.67x = 525,442.19 × 219,538.23 - Step 4: Simplify right side
380,714.67x = 115,354,647,262.23 - Step 5: Solve for x
x = 115,354,647,262.23/380,714.67 - Step 6: Final answer
x = 302,995.02
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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.