Finding the Fourth Proportional to 305,753.74, 421,943.99 and 169,796.15
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Solution
The fourth proportional to 305,753.74, 421,943.99 and 169,796.15 is: 234,320.81
Step by Step Solution
- Step 1: Write the proportion equation
305,753.74 : 421,943.99 = 169,796.15 : x - Step 2: Convert to fraction form
305,753.74/421,943.99 = 169,796.15/x - Step 3: Cross multiply
305,753.74x = 421,943.99 × 169,796.15 - Step 4: Simplify right side
305,753.74x = 71,644,463,641.23 - Step 5: Solve for x
x = 71,644,463,641.23/305,753.74 - Step 6: Final answer
x = 234,320.81
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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.