Finding the Fourth Proportional to 395,312.40, 545,531.40 and 214,024.44
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Solution
The fourth proportional to 395,312.40, 545,531.40 and 214,024.44 is: 295,353.88
Step by Step Solution
- Step 1: Write the proportion equation
395,312.40 : 545,531.40 = 214,024.44 : x - Step 2: Convert to fraction form
395,312.40/545,531.40 = 214,024.44/x - Step 3: Cross multiply
395,312.40x = 545,531.40 × 214,024.44 - Step 4: Simplify right side
395,312.40x = 116,757,052,387.42 - Step 5: Solve for x
x = 116,757,052,387.42/395,312.40 - Step 6: Final answer
x = 295,353.88
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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.