Finding the Fourth Proportional to 247,442.75, 341,391.63 and 138,531.08
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Solution
The fourth proportional to 247,442.75, 341,391.63 and 138,531.08 is: 191,128.45
Step by Step Solution
- Step 1: Write the proportion equation
247,442.75 : 341,391.63 = 138,531.08 : x - Step 2: Convert to fraction form
247,442.75/341,391.63 = 138,531.08/x - Step 3: Cross multiply
247,442.75x = 341,391.63 × 138,531.08 - Step 4: Simplify right side
247,442.75x = 47,293,349,499.90 - Step 5: Solve for x
x = 47,293,349,499.90/247,442.75 - Step 6: Final answer
x = 191,128.45
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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.