Finding the Fourth Proportional to 221,430.24, 331,555.68 and 116,028.72
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Solution
The fourth proportional to 221,430.24, 331,555.68 and 116,028.72 is: 173,734.09
Step by Step Solution
- Step 1: Write the proportion equation
221,430.24 : 331,555.68 = 116,028.72 : x - Step 2: Convert to fraction form
221,430.24/331,555.68 = 116,028.72/x - Step 3: Cross multiply
221,430.24x = 331,555.68 × 116,028.72 - Step 4: Simplify right side
221,430.24x = 38,469,981,159.13 - Step 5: Solve for x
x = 38,469,981,159.13/221,430.24 - Step 6: Final answer
x = 173,734.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.