Finding the Fourth Proportional to 388,228.68, 582,342.84 and 107,745.84
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Solution
The fourth proportional to 388,228.68, 582,342.84 and 107,745.84 is: 161,618.71
Step by Step Solution
- Step 1: Write the proportion equation
388,228.68 : 582,342.84 = 107,745.84 : x - Step 2: Convert to fraction form
388,228.68/582,342.84 = 107,745.84/x - Step 3: Cross multiply
388,228.68x = 582,342.84 × 107,745.84 - Step 4: Simplify right side
388,228.68x = 62,745,018,463.79 - Step 5: Solve for x
x = 62,745,018,463.79/388,228.68 - Step 6: Final answer
x = 161,618.71
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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.