Finding the Fourth Proportional to 309,608.24, 427,218.05 and 171,784.97
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Solution
The fourth proportional to 309,608.24, 427,218.05 and 171,784.97 is: 237,040.32
Step by Step Solution
- Step 1: Write the proportion equation
309,608.24 : 427,218.05 = 171,784.97 : x - Step 2: Convert to fraction form
309,608.24/427,218.05 = 171,784.97/x - Step 3: Cross multiply
309,608.24x = 427,218.05 × 171,784.97 - Step 4: Simplify right side
309,608.24x = 73,389,636,907.69 - Step 5: Solve for x
x = 73,389,636,907.69/309,608.24 - Step 6: Final answer
x = 237,040.32
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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.