Finding the Fourth Proportional to 235,660.05, 325,214.75 and 128,230.62
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Solution
The fourth proportional to 235,660.05, 325,214.75 and 128,230.62 is: 176,960.37
Step by Step Solution
- Step 1: Write the proportion equation
235,660.05 : 325,214.75 = 128,230.62 : x - Step 2: Convert to fraction form
235,660.05/325,214.75 = 128,230.62/x - Step 3: Cross multiply
235,660.05x = 325,214.75 × 128,230.62 - Step 4: Simplify right side
235,660.05x = 41,702,489,025.65 - Step 5: Solve for x
x = 41,702,489,025.65/235,660.05 - Step 6: Final answer
x = 176,960.37
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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.