Finding the Fourth Proportional to 213,913.24, 295,107.61 and 128,983.12
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Solution
The fourth proportional to 213,913.24, 295,107.61 and 128,983.12 is: 177,940.83
Step by Step Solution
- Step 1: Write the proportion equation
213,913.24 : 295,107.61 = 128,983.12 : x - Step 2: Convert to fraction form
213,913.24/295,107.61 = 128,983.12/x - Step 3: Cross multiply
213,913.24x = 295,107.61 × 128,983.12 - Step 4: Simplify right side
213,913.24x = 38,063,899,628.63 - Step 5: Solve for x
x = 38,063,899,628.63/213,913.24 - Step 6: Final answer
x = 177,940.83
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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.