Finding the Fourth Proportional to 235,634.21, 325,165.49 and 128,204.67
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Solution
The fourth proportional to 235,634.21, 325,165.49 and 128,204.67 is: 176,917.15
Step by Step Solution
- Step 1: Write the proportion equation
235,634.21 : 325,165.49 = 128,204.67 : x - Step 2: Convert to fraction form
235,634.21/325,165.49 = 128,204.67/x - Step 3: Cross multiply
235,634.21x = 325,165.49 × 128,204.67 - Step 4: Simplify right side
235,634.21x = 41,687,732,961.21 - Step 5: Solve for x
x = 41,687,732,961.21/235,634.21 - Step 6: Final answer
x = 176,917.15
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1.5x scale
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.