Finding the Fourth Proportional to 235,874.63, 325,498.40 and 128,442.31
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Solution
The fourth proportional to 235,874.63, 325,498.40 and 128,442.31 is: 177,245.70
Step by Step Solution
- Step 1: Write the proportion equation
235,874.63 : 325,498.40 = 128,442.31 : x - Step 2: Convert to fraction form
235,874.63/325,498.40 = 128,442.31/x - Step 3: Cross multiply
235,874.63x = 325,498.40 × 128,442.31 - Step 4: Simplify right side
235,874.63x = 41,807,765,423.01 - Step 5: Solve for x
x = 41,807,765,423.01/235,874.63 - Step 6: Final answer
x = 177,245.70
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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.