Finding the Fourth Proportional to 221,137.98, 305,170.50 and 125,644.80
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Solution
The fourth proportional to 221,137.98, 305,170.50 and 125,644.80 is: 173,389.87
Step by Step Solution
- Step 1: Write the proportion equation
221,137.98 : 305,170.50 = 125,644.80 : x - Step 2: Convert to fraction form
221,137.98/305,170.50 = 125,644.80/x - Step 3: Cross multiply
221,137.98x = 305,170.50 × 125,644.80 - Step 4: Simplify right side
221,137.98x = 38,343,086,438.40 - Step 5: Solve for x
x = 38,343,086,438.40/221,137.98 - Step 6: Final answer
x = 173,389.87
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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.