Finding the Fourth Proportional to 278,962.26, 418,419.63 and 110,436.75
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Solution
The fourth proportional to 278,962.26, 418,419.63 and 110,436.75 is: 165,645.72
Step by Step Solution
- Step 1: Write the proportion equation
278,962.26 : 418,419.63 = 110,436.75 : x - Step 2: Convert to fraction form
278,962.26/418,419.63 = 110,436.75/x - Step 3: Cross multiply
278,962.26x = 418,419.63 × 110,436.75 - Step 4: Simplify right side
278,962.26x = 46,208,904,073.40 - Step 5: Solve for x
x = 46,208,904,073.40/278,962.26 - Step 6: Final answer
x = 165,645.72
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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.