Finding the Fourth Proportional to 394,129.84, 591,207.36 and 154,234.24
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Solution
The fourth proportional to 394,129.84, 591,207.36 and 154,234.24 is: 231,356.29
Step by Step Solution
- Step 1: Write the proportion equation
394,129.84 : 591,207.36 = 154,234.24 : x - Step 2: Convert to fraction form
394,129.84/591,207.36 = 154,234.24/x - Step 3: Cross multiply
394,129.84x = 591,207.36 × 154,234.24 - Step 4: Simplify right side
394,129.84x = 91,184,417,852.01 - Step 5: Solve for x
x = 91,184,417,852.01/394,129.84 - Step 6: Final answer
x = 231,356.29
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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.