Finding the Fourth Proportional to 193,782.08, 290,578.30 and 79,908.60
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Solution
The fourth proportional to 193,782.08, 290,578.30 and 79,908.60 is: 119,823.80
Step by Step Solution
- Step 1: Write the proportion equation
193,782.08 : 290,578.30 = 79,908.60 : x - Step 2: Convert to fraction form
193,782.08/290,578.30 = 79,908.60/x - Step 3: Cross multiply
193,782.08x = 290,578.30 × 79,908.60 - Step 4: Simplify right side
193,782.08x = 23,219,705,143.38 - Step 5: Solve for x
x = 23,219,705,143.38/193,782.08 - Step 6: Final answer
x = 119,823.80
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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.