Finding the Fourth Proportional to 380,643.49, 525,249.83 and 227,650.99
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Solution
The fourth proportional to 380,643.49, 525,249.83 and 227,650.99 is: 314,135.53
Step by Step Solution
- Step 1: Write the proportion equation
380,643.49 : 525,249.83 = 227,650.99 : x - Step 2: Convert to fraction form
380,643.49/525,249.83 = 227,650.99/x - Step 3: Cross multiply
380,643.49x = 525,249.83 × 227,650.99 - Step 4: Simplify right side
380,643.49x = 119,573,643,796.83 - Step 5: Solve for x
x = 119,573,643,796.83/380,643.49 - Step 6: Final answer
x = 314,135.53
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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.