Finding the Fourth Proportional to 213,176.20, 319,764.30 and 124,529.80
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Solution
The fourth proportional to 213,176.20, 319,764.30 and 124,529.80 is: 186,794.70
Step by Step Solution
- Step 1: Write the proportion equation
213,176.20 : 319,764.30 = 124,529.80 : x - Step 2: Convert to fraction form
213,176.20/319,764.30 = 124,529.80/x - Step 3: Cross multiply
213,176.20x = 319,764.30 × 124,529.80 - Step 4: Simplify right side
213,176.20x = 39,820,184,326.14 - Step 5: Solve for x
x = 39,820,184,326.14/213,176.20 - Step 6: Final answer
x = 186,794.70
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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.