Finding the Fourth Proportional to 143,238.18, 213,805.84 and 132,682.26
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Solution
The fourth proportional to 143,238.18, 213,805.84 and 132,682.26 is: 198,049.45
Step by Step Solution
- Step 1: Write the proportion equation
143,238.18 : 213,805.84 = 132,682.26 : x - Step 2: Convert to fraction form
143,238.18/213,805.84 = 132,682.26/x - Step 3: Cross multiply
143,238.18x = 213,805.84 × 132,682.26 - Step 4: Simplify right side
143,238.18x = 28,368,242,052.40 - Step 5: Solve for x
x = 28,368,242,052.40/143,238.18 - Step 6: Final answer
x = 198,049.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.