Finding the Fourth Proportional to 387,430.96, 582,021.28 and 229,762.84
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Solution
The fourth proportional to 387,430.96, 582,021.28 and 229,762.84 is: 345,163.08
Step by Step Solution
- Step 1: Write the proportion equation
387,430.96 : 582,021.28 = 229,762.84 : x - Step 2: Convert to fraction form
387,430.96/582,021.28 = 229,762.84/x - Step 3: Cross multiply
387,430.96x = 582,021.28 × 229,762.84 - Step 4: Simplify right side
387,430.96x = 133,726,862,233.24 - Step 5: Solve for x
x = 133,726,862,233.24/387,430.96 - Step 6: Final answer
x = 345,163.08
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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.