Finding the Fourth Proportional to 206,468.13, 309,493.04 and 139,914.99
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Solution
The fourth proportional to 206,468.13, 309,493.04 and 139,914.99 is: 209,730.75
Step by Step Solution
- Step 1: Write the proportion equation
206,468.13 : 309,493.04 = 139,914.99 : x - Step 2: Convert to fraction form
206,468.13/309,493.04 = 139,914.99/x - Step 3: Cross multiply
206,468.13x = 309,493.04 × 139,914.99 - Step 4: Simplify right side
206,468.13x = 43,302,714,897.09 - Step 5: Solve for x
x = 43,302,714,897.09/206,468.13 - Step 6: Final answer
x = 209,730.75
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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.