Finding the Fourth Proportional to 221,733.66, 305,984.88 and 126,221.88
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Solution
The fourth proportional to 221,733.66, 305,984.88 and 126,221.88 is: 174,181.88
Step by Step Solution
- Step 1: Write the proportion equation
221,733.66 : 305,984.88 = 126,221.88 : x - Step 2: Convert to fraction form
221,733.66/305,984.88 = 126,221.88/x - Step 3: Cross multiply
221,733.66x = 305,984.88 × 126,221.88 - Step 4: Simplify right side
221,733.66x = 38,621,986,805.17 - Step 5: Solve for x
x = 38,621,986,805.17/221,733.66 - Step 6: Final answer
x = 174,181.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.