Finding the Fourth Proportional to 321,415.25, 482,126.99 and 221,548.64
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Solution
The fourth proportional to 321,415.25, 482,126.99 and 221,548.64 is: 332,325.80
Step by Step Solution
- Step 1: Write the proportion equation
321,415.25 : 482,126.99 = 221,548.64 : x - Step 2: Convert to fraction form
321,415.25/482,126.99 = 221,548.64/x - Step 3: Cross multiply
321,415.25x = 482,126.99 × 221,548.64 - Step 4: Simplify right side
321,415.25x = 106,814,578,941.79 - Step 5: Solve for x
x = 106,814,578,941.79/321,415.25 - Step 6: Final answer
x = 332,325.80
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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.