Finding the Fourth Proportional to 198,703.13, 297,981.79 and 65,543.99
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Solution
The fourth proportional to 198,703.13, 297,981.79 and 65,543.99 is: 98,291.93
Step by Step Solution
- Step 1: Write the proportion equation
198,703.13 : 297,981.79 = 65,543.99 : x - Step 2: Convert to fraction form
198,703.13/297,981.79 = 65,543.99/x - Step 3: Cross multiply
198,703.13x = 297,981.79 × 65,543.99 - Step 4: Simplify right side
198,703.13x = 19,530,913,810.17 - Step 5: Solve for x
x = 19,530,913,810.17/198,703.13 - Step 6: Final answer
x = 98,291.93
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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.