Finding the Fourth Proportional to 661,614.42, 992,362.62 and 212,213.28
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Solution
The fourth proportional to 661,614.42, 992,362.62 and 212,213.28 is: 318,300.99
Step by Step Solution
- Step 1: Write the proportion equation
661,614.42 : 992,362.62 = 212,213.28 : x - Step 2: Convert to fraction form
661,614.42/992,362.62 = 212,213.28/x - Step 3: Cross multiply
661,614.42x = 992,362.62 × 212,213.28 - Step 4: Simplify right side
661,614.42x = 210,592,526,539.59 - Step 5: Solve for x
x = 210,592,526,539.59/661,614.42 - Step 6: Final answer
x = 318,300.99
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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.