Finding the Fourth Proportional to 481,253.21, 721,630.62 and 256,553.29
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Solution
The fourth proportional to 481,253.21, 721,630.62 and 256,553.29 is: 384,697.09
Step by Step Solution
- Step 1: Write the proportion equation
481,253.21 : 721,630.62 = 256,553.29 : x - Step 2: Convert to fraction form
481,253.21/721,630.62 = 256,553.29/x - Step 3: Cross multiply
481,253.21x = 721,630.62 × 256,553.29 - Step 4: Simplify right side
481,253.21x = 185,136,709,725.74 - Step 5: Solve for x
x = 185,136,709,725.74/481,253.21 - Step 6: Final answer
x = 384,697.09
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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.