Finding the Fourth Proportional to 303,614.19, 455,420.33 and 81,998.19
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Solution
The fourth proportional to 303,614.19, 455,420.33 and 81,998.19 is: 122,997.03
Step by Step Solution
- Step 1: Write the proportion equation
303,614.19 : 455,420.33 = 81,998.19 : x - Step 2: Convert to fraction form
303,614.19/455,420.33 = 81,998.19/x - Step 3: Cross multiply
303,614.19x = 455,420.33 × 81,998.19 - Step 4: Simplify right side
303,614.19x = 37,343,642,339.21 - Step 5: Solve for x
x = 37,343,642,339.21/303,614.19 - Step 6: Final answer
x = 122,997.03
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1.5x scale
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.