Finding the Fourth Proportional to 305,430.63, 421,544.84 and 169,508.24
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Solution
The fourth proportional to 305,430.63, 421,544.84 and 169,508.24 is: 233,949.43
Step by Step Solution
- Step 1: Write the proportion equation
305,430.63 : 421,544.84 = 169,508.24 : x - Step 2: Convert to fraction form
305,430.63/421,544.84 = 169,508.24/x - Step 3: Cross multiply
305,430.63x = 421,544.84 × 169,508.24 - Step 4: Simplify right side
305,430.63x = 71,455,320,954.22 - Step 5: Solve for x
x = 71,455,320,954.22/305,430.63 - Step 6: Final answer
x = 233,949.43
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1.5x scale
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.