Finding the Fourth Proportional to 405,658.96, 559,806.06 and 224,378.62
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Solution
The fourth proportional to 405,658.96, 559,806.06 and 224,378.62 is: 309,640.67
Step by Step Solution
- Step 1: Write the proportion equation
405,658.96 : 559,806.06 = 224,378.62 : x - Step 2: Convert to fraction form
405,658.96/559,806.06 = 224,378.62/x - Step 3: Cross multiply
405,658.96x = 559,806.06 × 224,378.62 - Step 4: Simplify right side
405,658.96x = 125,608,511,210.44 - Step 5: Solve for x
x = 125,608,511,210.44/405,658.96 - Step 6: Final answer
x = 309,640.67
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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.