Finding the Fourth Proportional to 256,903.44, 354,645.72 and 149,434.26
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Solution
The fourth proportional to 256,903.44, 354,645.72 and 149,434.26 is: 206,288.48
Step by Step Solution
- Step 1: Write the proportion equation
256,903.44 : 354,645.72 = 149,434.26 : x - Step 2: Convert to fraction form
256,903.44/354,645.72 = 149,434.26/x - Step 3: Cross multiply
256,903.44x = 354,645.72 × 149,434.26 - Step 4: Simplify right side
256,903.44x = 52,996,220,730.37 - Step 5: Solve for x
x = 52,996,220,730.37/256,903.44 - Step 6: Final answer
x = 206,288.48
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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.