Finding the Fourth Proportional to 274,324.21, 378,552.15 and 153,442.17
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Solution
The fourth proportional to 274,324.21, 378,552.15 and 153,442.17 is: 211,741.66
Step by Step Solution
- Step 1: Write the proportion equation
274,324.21 : 378,552.15 = 153,442.17 : x - Step 2: Convert to fraction form
274,324.21/378,552.15 = 153,442.17/x - Step 3: Cross multiply
274,324.21x = 378,552.15 × 153,442.17 - Step 4: Simplify right side
274,324.21x = 58,085,863,354.17 - Step 5: Solve for x
x = 58,085,863,354.17/274,324.21 - Step 6: Final answer
x = 211,741.66
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1.5x scale
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.