Finding the Fourth Proportional to 205,813.24, 308,542.43 and 79,542.07
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Solution
The fourth proportional to 205,813.24, 308,542.43 and 79,542.07 is: 119,244.53
Step by Step Solution
- Step 1: Write the proportion equation
205,813.24 : 308,542.43 = 79,542.07 : x - Step 2: Convert to fraction form
205,813.24/308,542.43 = 79,542.07/x - Step 3: Cross multiply
205,813.24x = 308,542.43 × 79,542.07 - Step 4: Simplify right side
205,813.24x = 24,542,102,992.53 - Step 5: Solve for x
x = 24,542,102,992.53/205,813.24 - Step 6: Final answer
x = 119,244.53
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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.