Finding the Fourth Proportional to 394,653.62, 591,929.12 and 157,998.62
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Solution
The fourth proportional to 394,653.62, 591,929.12 and 157,998.62 is: 236,977.39
Step by Step Solution
- Step 1: Write the proportion equation
394,653.62 : 591,929.12 = 157,998.62 : x - Step 2: Convert to fraction form
394,653.62/591,929.12 = 157,998.62/x - Step 3: Cross multiply
394,653.62x = 591,929.12 × 157,998.62 - Step 4: Simplify right side
394,653.62x = 93,523,984,097.81 - Step 5: Solve for x
x = 93,523,984,097.81/394,653.62 - Step 6: Final answer
x = 236,977.39
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1.5x scale
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.