Finding the Fourth Proportional to 305,712.36, 421,883.87 and 169,746.56
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Solution
The fourth proportional to 305,712.36, 421,883.87 and 169,746.56 is: 234,250.70
Step by Step Solution
- Step 1: Write the proportion equation
305,712.36 : 421,883.87 = 169,746.56 : x - Step 2: Convert to fraction form
305,712.36/421,883.87 = 169,746.56/x - Step 3: Cross multiply
305,712.36x = 421,883.87 × 169,746.56 - Step 4: Simplify right side
305,712.36x = 71,613,335,651.99 - Step 5: Solve for x
x = 71,613,335,651.99/305,712.36 - Step 6: Final answer
x = 234,250.70
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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.