Finding the Fourth Proportional to 221,668.08, 305,903.97 and 126,180.96
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Solution
The fourth proportional to 221,668.08, 305,903.97 and 126,180.96 is: 174,130.87
Step by Step Solution
- Step 1: Write the proportion equation
221,668.08 : 305,903.97 = 126,180.96 : x - Step 2: Convert to fraction form
221,668.08/305,903.97 = 126,180.96/x - Step 3: Cross multiply
221,668.08x = 305,903.97 × 126,180.96 - Step 4: Simplify right side
221,668.08x = 38,599,256,602.41 - Step 5: Solve for x
x = 38,599,256,602.41/221,668.08 - Step 6: Final answer
x = 174,130.87
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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.