Finding the Fourth Proportional to 159,828.18, 239,783.79 and 131,411.97
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Solution
The fourth proportional to 159,828.18, 239,783.79 and 131,411.97 is: 197,152.09
Step by Step Solution
- Step 1: Write the proportion equation
159,828.18 : 239,783.79 = 131,411.97 : x - Step 2: Convert to fraction form
159,828.18/239,783.79 = 131,411.97/x - Step 3: Cross multiply
159,828.18x = 239,783.79 × 131,411.97 - Step 4: Simplify right side
159,828.18x = 31,510,460,217.97 - Step 5: Solve for x
x = 31,510,460,217.97/159,828.18 - Step 6: Final answer
x = 197,152.09
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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.