Finding the Fourth Proportional to 306,357.67, 458,749.18 and 187,669.18
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Solution
The fourth proportional to 306,357.67, 458,749.18 and 187,669.18 is: 281,021.47
Step by Step Solution
- Step 1: Write the proportion equation
306,357.67 : 458,749.18 = 187,669.18 : x - Step 2: Convert to fraction form
306,357.67/458,749.18 = 187,669.18/x - Step 3: Cross multiply
306,357.67x = 458,749.18 × 187,669.18 - Step 4: Simplify right side
306,357.67x = 86,093,080,820.23 - Step 5: Solve for x
x = 86,093,080,820.23/306,357.67 - Step 6: Final answer
x = 281,021.47
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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.