Finding the Fourth Proportional to 278,772.44, 418,151.84 and 79,093.13
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Solution
The fourth proportional to 278,772.44, 418,151.84 and 79,093.13 is: 118,637.75
Step by Step Solution
- Step 1: Write the proportion equation
278,772.44 : 418,151.84 = 79,093.13 : x - Step 2: Convert to fraction form
278,772.44/418,151.84 = 79,093.13/x - Step 3: Cross multiply
278,772.44x = 418,151.84 × 79,093.13 - Step 4: Simplify right side
278,772.44x = 33,072,935,354.63 - Step 5: Solve for x
x = 33,072,935,354.63/278,772.44 - Step 6: Final answer
x = 118,637.75
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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.