Finding the Fourth Proportional to 279,035.36, 418,543.68 and 121,263.81
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Solution
The fourth proportional to 279,035.36, 418,543.68 and 121,263.81 is: 181,891.64
Step by Step Solution
- Step 1: Write the proportion equation
279,035.36 : 418,543.68 = 121,263.81 : x - Step 2: Convert to fraction form
279,035.36/418,543.68 = 121,263.81/x - Step 3: Cross multiply
279,035.36x = 418,543.68 × 121,263.81 - Step 4: Simplify right side
279,035.36x = 50,754,200,173.42 - Step 5: Solve for x
x = 50,754,200,173.42/279,035.36 - Step 6: Final answer
x = 181,891.64
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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.