Finding the Fourth Proportional to 256,889.13, 354,578.28 and 149,479.98
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Solution
The fourth proportional to 256,889.13, 354,578.28 and 149,479.98 is: 206,323.85
Step by Step Solution
- Step 1: Write the proportion equation
256,889.13 : 354,578.28 = 149,479.98 : x - Step 2: Convert to fraction form
256,889.13/354,578.28 = 149,479.98/x - Step 3: Cross multiply
256,889.13x = 354,578.28 × 149,479.98 - Step 4: Simplify right side
256,889.13x = 53,002,354,202.83 - Step 5: Solve for x
x = 53,002,354,202.83/256,889.13 - Step 6: Final answer
x = 206,323.85
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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.