Finding the Fourth Proportional to 239,816.18, 330,922.74 and 132,379.28
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Solution
The fourth proportional to 239,816.18, 330,922.74 and 132,379.28 is: 182,670.39
Step by Step Solution
- Step 1: Write the proportion equation
239,816.18 : 330,922.74 = 132,379.28 : x - Step 2: Convert to fraction form
239,816.18/330,922.74 = 132,379.28/x - Step 3: Cross multiply
239,816.18x = 330,922.74 × 132,379.28 - Step 4: Simplify right side
239,816.18x = 43,807,314,056.83 - Step 5: Solve for x
x = 43,807,314,056.83/239,816.18 - Step 6: Final answer
x = 182,670.39
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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.