Finding the Fourth Proportional to 394,318.05, 544,159.18 and 213,029.91
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Solution
The fourth proportional to 394,318.05, 544,159.18 and 213,029.91 is: 293,981.42
Step by Step Solution
- Step 1: Write the proportion equation
394,318.05 : 544,159.18 = 213,029.91 : x - Step 2: Convert to fraction form
394,318.05/544,159.18 = 213,029.91/x - Step 3: Cross multiply
394,318.05x = 544,159.18 × 213,029.91 - Step 4: Simplify right side
394,318.05x = 115,922,181,141.07 - Step 5: Solve for x
x = 115,922,181,141.07/394,318.05 - Step 6: Final answer
x = 293,981.42
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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.