Finding the Third Proportional to 221,138.44 and 331,355.81
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Solution
The third proportional to 221,138.44 and 331,355.81 is: 496,506.51
Step by Step Solution
- Step 1: Write the proportion equation
221,138.44 : 331,355.81 = 331,355.81 : x - Step 2: Convert to fraction form
221,138.44/331,355.81 = 331,355.81/x - Step 3: Cross multiply
221,138.44x = 331,355.81 × 331,355.81 - Step 4: Simplify right side
221,138.44x = 109,796,674,477.54 - Step 5: Solve for x
x = 109,796,674,477.54/221,138.44 - Step 6: Final answer
x = 496,506.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.