Finding the Fourth Proportional to 221,216.87, 305,305.20 and 125,737.92
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Solution
The fourth proportional to 221,216.87, 305,305.20 and 125,737.92 is: 173,533.06
Step by Step Solution
- Step 1: Write the proportion equation
221,216.87 : 305,305.20 = 125,737.92 : x - Step 2: Convert to fraction form
221,216.87/305,305.20 = 125,737.92/x - Step 3: Cross multiply
221,216.87x = 305,305.20 × 125,737.92 - Step 4: Simplify right side
221,216.87x = 38,388,440,813.18 - Step 5: Solve for x
x = 38,388,440,813.18/221,216.87 - Step 6: Final answer
x = 173,533.06
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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.