Finding the Fourth Proportional to 239,305.18, 330,243.36 and 131,879.06
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Solution
The fourth proportional to 239,305.18, 330,243.36 and 131,879.06 is: 181,994.32
Step by Step Solution
- Step 1: Write the proportion equation
239,305.18 : 330,243.36 = 131,879.06 : x - Step 2: Convert to fraction form
239,305.18/330,243.36 = 131,879.06/x - Step 3: Cross multiply
239,305.18x = 330,243.36 × 131,879.06 - Step 4: Simplify right side
239,305.18x = 43,552,183,888.04 - Step 5: Solve for x
x = 43,552,183,888.04/239,305.18 - Step 6: Final answer
x = 181,994.32
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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.