Finding the Fourth Proportional to 235,458.88, 324,926.16 and 128,029.12
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Solution
The fourth proportional to 235,458.88, 324,926.16 and 128,029.12 is: 176,676.33
Step by Step Solution
- Step 1: Write the proportion equation
235,458.88 : 324,926.16 = 128,029.12 : x - Step 2: Convert to fraction form
235,458.88/324,926.16 = 128,029.12/x - Step 3: Cross multiply
235,458.88x = 324,926.16 × 128,029.12 - Step 4: Simplify right side
235,458.88x = 41,600,010,329.78 - Step 5: Solve for x
x = 41,600,010,329.78/235,458.88 - Step 6: Final answer
x = 176,676.33
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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.