Finding the Fourth Proportional to 355,462.16, 490,418.02 and 202,392.09
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Solution
The fourth proportional to 355,462.16, 490,418.02 and 202,392.09 is: 279,232.89
Step by Step Solution
- Step 1: Write the proportion equation
355,462.16 : 490,418.02 = 202,392.09 : x - Step 2: Convert to fraction form
355,462.16/490,418.02 = 202,392.09/x - Step 3: Cross multiply
355,462.16x = 490,418.02 × 202,392.09 - Step 4: Simplify right side
355,462.16x = 99,256,727,156.00 - Step 5: Solve for x
x = 99,256,727,156.00/355,462.16 - Step 6: Final answer
x = 279,232.89
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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.