Finding the Fourth Proportional to 381,111.97, 525,943.77 and 209,036.99
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Solution
The fourth proportional to 381,111.97, 525,943.77 and 209,036.99 is: 288,476.12
Step by Step Solution
- Step 1: Write the proportion equation
381,111.97 : 525,943.77 = 209,036.99 : x - Step 2: Convert to fraction form
381,111.97/525,943.77 = 209,036.99/x - Step 3: Cross multiply
381,111.97x = 525,943.77 × 209,036.99 - Step 4: Simplify right side
381,111.97x = 109,941,702,590.05 - Step 5: Solve for x
x = 109,941,702,590.05/381,111.97 - Step 6: Final answer
x = 288,476.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.