Finding the Fourth Proportional to 214,703.20, 321,926.80 and 131,656.80
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Solution
The fourth proportional to 214,703.20, 321,926.80 and 131,656.80 is: 197,406.71
Step by Step Solution
- Step 1: Write the proportion equation
214,703.20 : 321,926.80 = 131,656.80 : x - Step 2: Convert to fraction form
214,703.20/321,926.80 = 131,656.80/x - Step 3: Cross multiply
214,703.20x = 321,926.80 × 131,656.80 - Step 4: Simplify right side
214,703.20x = 42,383,852,322.24 - Step 5: Solve for x
x = 42,383,852,322.24/214,703.20 - Step 6: Final answer
x = 197,406.71
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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.