Finding the Fourth Proportional to 221,467.23, 305,620.52 and 120,865.95
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Solution
The fourth proportional to 221,467.23, 305,620.52 and 120,865.95 is: 166,792.68
Step by Step Solution
- Step 1: Write the proportion equation
221,467.23 : 305,620.52 = 120,865.95 : x - Step 2: Convert to fraction form
221,467.23/305,620.52 = 120,865.95/x - Step 3: Cross multiply
221,467.23x = 305,620.52 × 120,865.95 - Step 4: Simplify right side
221,467.23x = 36,939,113,884.96 - Step 5: Solve for x
x = 36,939,113,884.96/221,467.23 - Step 6: Final answer
x = 166,792.68
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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.