Finding the Fourth Proportional to 274,548.75, 378,885.19 and 153,689.31
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Solution
The fourth proportional to 274,548.75, 378,885.19 and 153,689.31 is: 212,095.68
Step by Step Solution
- Step 1: Write the proportion equation
274,548.75 : 378,885.19 = 153,689.31 : x - Step 2: Convert to fraction form
274,548.75/378,885.19 = 153,689.31/x - Step 3: Cross multiply
274,548.75x = 378,885.19 × 153,689.31 - Step 4: Simplify right side
274,548.75x = 58,230,603,420.32 - Step 5: Solve for x
x = 58,230,603,420.32/274,548.75 - Step 6: Final answer
x = 212,095.68
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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.