Finding the Fourth Proportional to 394,688.05, 544,657.13 and 222,658.63
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Solution
The fourth proportional to 394,688.05, 544,657.13 and 222,658.63 is: 307,261.92
Step by Step Solution
- Step 1: Write the proportion equation
394,688.05 : 544,657.13 = 222,658.63 : x - Step 2: Convert to fraction form
394,688.05/544,657.13 = 222,658.63/x - Step 3: Cross multiply
394,688.05x = 544,657.13 × 222,658.63 - Step 4: Simplify right side
394,688.05x = 121,272,608,745.57 - Step 5: Solve for x
x = 121,272,608,745.57/394,688.05 - Step 6: Final answer
x = 307,261.92
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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.