Finding the Fourth Proportional to 306,545.03, 422,792.49 and 199,149.66
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Solution
The fourth proportional to 306,545.03, 422,792.49 and 199,149.66 is: 274,670.84
Step by Step Solution
- Step 1: Write the proportion equation
306,545.03 : 422,792.49 = 199,149.66 : x - Step 2: Convert to fraction form
306,545.03/422,792.49 = 199,149.66/x - Step 3: Cross multiply
306,545.03x = 422,792.49 × 199,149.66 - Step 4: Simplify right side
306,545.03x = 84,198,981,472.71 - Step 5: Solve for x
x = 84,198,981,472.71/306,545.03 - Step 6: Final answer
x = 274,670.84
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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.