Finding the Fourth Proportional to 388,489.93, 582,825.04 and 122,243.53
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Solution
The fourth proportional to 388,489.93, 582,825.04 and 122,243.53 is: 183,393.65
Step by Step Solution
- Step 1: Write the proportion equation
388,489.93 : 582,825.04 = 122,243.53 : x - Step 2: Convert to fraction form
388,489.93/582,825.04 = 122,243.53/x - Step 3: Cross multiply
388,489.93x = 582,825.04 × 122,243.53 - Step 4: Simplify right side
388,489.93x = 71,246,587,347.87 - Step 5: Solve for x
x = 71,246,587,347.87/388,489.93 - Step 6: Final answer
x = 183,393.65
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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.