Finding the Fourth Proportional to 305,025.05, 420,943.77 and 169,046.30
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Solution
The fourth proportional to 305,025.05, 420,943.77 and 169,046.30 is: 233,288.99
Step by Step Solution
- Step 1: Write the proportion equation
305,025.05 : 420,943.77 = 169,046.30 : x - Step 2: Convert to fraction form
305,025.05/420,943.77 = 169,046.30/x - Step 3: Cross multiply
305,025.05x = 420,943.77 × 169,046.30 - Step 4: Simplify right side
305,025.05x = 71,158,987,878.91 - Step 5: Solve for x
x = 71,158,987,878.91/305,025.05 - Step 6: Final answer
x = 233,288.99
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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.