Finding the Fourth Proportional to 221,993.24, 306,380.70 and 125,216.96
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Solution
The fourth proportional to 221,993.24, 306,380.70 and 125,216.96 is: 172,816.34
Step by Step Solution
- Step 1: Write the proportion equation
221,993.24 : 306,380.70 = 125,216.96 : x - Step 2: Convert to fraction form
221,993.24/306,380.70 = 125,216.96/x - Step 3: Cross multiply
221,993.24x = 306,380.70 × 125,216.96 - Step 4: Simplify right side
221,993.24x = 38,364,059,856.67 - Step 5: Solve for x
x = 38,364,059,856.67/221,993.24 - Step 6: Final answer
x = 172,816.34
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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.