Finding the Fourth Proportional to 363,390.18, 545,972.21 and 343,247.91
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Solution
The fourth proportional to 363,390.18, 545,972.21 and 343,247.91 is: 515,709.64
Step by Step Solution
- Step 1: Write the proportion equation
363,390.18 : 545,972.21 = 343,247.91 : x - Step 2: Convert to fraction form
363,390.18/545,972.21 = 343,247.91/x - Step 3: Cross multiply
363,390.18x = 545,972.21 × 343,247.91 - Step 4: Simplify right side
363,390.18x = 187,403,820,000.58 - Step 5: Solve for x
x = 187,403,820,000.58/363,390.18 - Step 6: Final answer
x = 515,709.64
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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.