Finding the Fourth Proportional to 221,102.21, 305,122.07 and 125,614.15
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Solution
The fourth proportional to 221,102.21, 305,122.07 and 125,614.15 is: 173,348.10
Step by Step Solution
- Step 1: Write the proportion equation
221,102.21 : 305,122.07 = 125,614.15 : x - Step 2: Convert to fraction form
221,102.21/305,122.07 = 125,614.15/x - Step 3: Cross multiply
221,102.21x = 305,122.07 × 125,614.15 - Step 4: Simplify right side
221,102.21x = 38,327,648,078.41 - Step 5: Solve for x
x = 38,327,648,078.41/221,102.21 - Step 6: Final answer
x = 173,348.10
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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.