Finding the Fourth Proportional to 239,956.24, 331,203.66 and 137,992.84
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Solution
The fourth proportional to 239,956.24, 331,203.66 and 137,992.84 is: 190,466.95
Step by Step Solution
- Step 1: Write the proportion equation
239,956.24 : 331,203.66 = 137,992.84 : x - Step 2: Convert to fraction form
239,956.24/331,203.66 = 137,992.84/x - Step 3: Cross multiply
239,956.24x = 331,203.66 × 137,992.84 - Step 4: Simplify right side
239,956.24x = 45,703,733,661.79 - Step 5: Solve for x
x = 45,703,733,661.79/239,956.24 - Step 6: Final answer
x = 190,466.95
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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.