Finding the Fourth Proportional to 221,726.10, 305,982.30 and 126,232.80
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Solution
The fourth proportional to 221,726.10, 305,982.30 and 126,232.80 is: 174,201.42
Step by Step Solution
- Step 1: Write the proportion equation
221,726.10 : 305,982.30 = 126,232.80 : x - Step 2: Convert to fraction form
221,726.10/305,982.30 = 126,232.80/x - Step 3: Cross multiply
221,726.10x = 305,982.30 × 126,232.80 - Step 4: Simplify right side
221,726.10x = 38,625,002,479.44 - Step 5: Solve for x
x = 38,625,002,479.44/221,726.10 - Step 6: Final answer
x = 174,201.42
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1.5x scale
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.