Finding the Fourth Proportional to 304,961.68, 420,807.72 and 170,825.68
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Solution
The fourth proportional to 304,961.68, 420,807.72 and 170,825.68 is: 235,717.37
Step by Step Solution
- Step 1: Write the proportion equation
304,961.68 : 420,807.72 = 170,825.68 : x - Step 2: Convert to fraction form
304,961.68/420,807.72 = 170,825.68/x - Step 3: Cross multiply
304,961.68x = 420,807.72 × 170,825.68 - Step 4: Simplify right side
304,961.68x = 71,884,764,918.25 - Step 5: Solve for x
x = 71,884,764,918.25/304,961.68 - Step 6: Final answer
x = 235,717.37
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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.