Finding the Fourth Proportional to 214,326.63, 321,467.18 and 87,980.13
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Solution
The fourth proportional to 214,326.63, 321,467.18 and 87,980.13 is: 131,960.85
Step by Step Solution
- Step 1: Write the proportion equation
214,326.63 : 321,467.18 = 87,980.13 : x - Step 2: Convert to fraction form
214,326.63/321,467.18 = 87,980.13/x - Step 3: Cross multiply
214,326.63x = 321,467.18 × 87,980.13 - Step 4: Simplify right side
214,326.63x = 28,282,723,847.23 - Step 5: Solve for x
x = 28,282,723,847.23/214,326.63 - Step 6: Final answer
x = 131,960.85
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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.