Finding the Fourth Proportional to 399,692.43, 551,571.39 and 225,246.38
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Solution
The fourth proportional to 399,692.43, 551,571.39 and 225,246.38 is: 310,837.65
Step by Step Solution
- Step 1: Write the proportion equation
399,692.43 : 551,571.39 = 225,246.38 : x - Step 2: Convert to fraction form
399,692.43/551,571.39 = 225,246.38/x - Step 3: Cross multiply
399,692.43x = 551,571.39 × 225,246.38 - Step 4: Simplify right side
399,692.43x = 124,239,456,151.21 - Step 5: Solve for x
x = 124,239,456,151.21/399,692.43 - Step 6: Final answer
x = 310,837.65
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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.