Finding the Fourth Proportional to 308,984.72, 426,166.80 and 207,125.06
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Solution
The fourth proportional to 308,984.72, 426,166.80 and 207,125.06 is: 285,676.99
Step by Step Solution
- Step 1: Write the proportion equation
308,984.72 : 426,166.80 = 207,125.06 : x - Step 2: Convert to fraction form
308,984.72/426,166.80 = 207,125.06/x - Step 3: Cross multiply
308,984.72x = 426,166.80 × 207,125.06 - Step 4: Simplify right side
308,984.72x = 88,269,824,020.01 - Step 5: Solve for x
x = 88,269,824,020.01/308,984.72 - Step 6: Final answer
x = 285,676.99
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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.