Finding the Fourth Proportional to 221,364.23, 305,481.15 and 125,870.90
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Solution
The fourth proportional to 221,364.23, 305,481.15 and 125,870.90 is: 173,700.99
Step by Step Solution
- Step 1: Write the proportion equation
221,364.23 : 305,481.15 = 125,870.90 : x - Step 2: Convert to fraction form
221,364.23/305,481.15 = 125,870.90/x - Step 3: Cross multiply
221,364.23x = 305,481.15 × 125,870.90 - Step 4: Simplify right side
221,364.23x = 38,451,185,756.13 - Step 5: Solve for x
x = 38,451,185,756.13/221,364.23 - Step 6: Final answer
x = 173,700.99
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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.