Finding the Fourth Proportional to 381,067.99, 525,874.57 and 208,987.17
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Solution
The fourth proportional to 381,067.99, 525,874.57 and 208,987.17 is: 288,402.70
Step by Step Solution
- Step 1: Write the proportion equation
381,067.99 : 525,874.57 = 208,987.17 : x - Step 2: Convert to fraction form
381,067.99/525,874.57 = 208,987.17/x - Step 3: Cross multiply
381,067.99x = 525,874.57 × 208,987.17 - Step 4: Simplify right side
381,067.99x = 109,901,035,664.77 - Step 5: Solve for x
x = 109,901,035,664.77/381,067.99 - Step 6: Final answer
x = 288,402.70
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1.5x scale
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.