Finding the Fourth Proportional to 215,023.98, 322,131.36 and 126,013.08
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Solution
The fourth proportional to 215,023.98, 322,131.36 and 126,013.08 is: 188,782.50
Step by Step Solution
- Step 1: Write the proportion equation
215,023.98 : 322,131.36 = 126,013.08 : x - Step 2: Convert to fraction form
215,023.98/322,131.36 = 126,013.08/x - Step 3: Cross multiply
215,023.98x = 322,131.36 × 126,013.08 - Step 4: Simplify right side
215,023.98x = 40,592,764,838.19 - Step 5: Solve for x
x = 40,592,764,838.19/215,023.98 - Step 6: Final answer
x = 188,782.50
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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.