Finding the Fourth Proportional to 186,412.20, 279,618.30 and 157,543.80
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Solution
The fourth proportional to 186,412.20, 279,618.30 and 157,543.80 is: 236,315.70
Step by Step Solution
- Step 1: Write the proportion equation
186,412.20 : 279,618.30 = 157,543.80 : x - Step 2: Convert to fraction form
186,412.20/279,618.30 = 157,543.80/x - Step 3: Cross multiply
186,412.20x = 279,618.30 × 157,543.80 - Step 4: Simplify right side
186,412.20x = 44,052,129,531.54 - Step 5: Solve for x
x = 44,052,129,531.54/186,412.20 - Step 6: Final answer
x = 236,315.70
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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.