Finding the Fourth Proportional to 216,954.72, 299,432.97 and 129,733.92
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Solution
The fourth proportional to 216,954.72, 299,432.97 and 129,733.92 is: 179,054.01
Step by Step Solution
- Step 1: Write the proportion equation
216,954.72 : 299,432.97 = 129,733.92 : x - Step 2: Convert to fraction form
216,954.72/299,432.97 = 129,733.92/x - Step 3: Cross multiply
216,954.72x = 299,432.97 × 129,733.92 - Step 4: Simplify right side
216,954.72x = 38,846,612,975.34 - Step 5: Solve for x
x = 38,846,612,975.34/216,954.72 - Step 6: Final answer
x = 179,054.01
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1.5x scale
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.