Finding the Fourth Proportional to 394,545.15, 544,474.71 and 213,256.62
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Solution
The fourth proportional to 394,545.15, 544,474.71 and 213,256.62 is: 294,295.43
Step by Step Solution
- Step 1: Write the proportion equation
394,545.15 : 544,474.71 = 213,256.62 : x - Step 2: Convert to fraction form
394,545.15/544,474.71 = 213,256.62/x - Step 3: Cross multiply
394,545.15x = 544,474.71 × 213,256.62 - Step 4: Simplify right side
394,545.15x = 116,112,836,330.08 - Step 5: Solve for x
x = 116,112,836,330.08/394,545.15 - Step 6: Final answer
x = 294,295.43
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1.5x scale
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.