Finding the Fourth Proportional to 230,385.96, 317,933.01 and 128,409.12
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Solution
The fourth proportional to 230,385.96, 317,933.01 and 128,409.12 is: 177,204.80
Step by Step Solution
- Step 1: Write the proportion equation
230,385.96 : 317,933.01 = 128,409.12 : x - Step 2: Convert to fraction form
230,385.96/317,933.01 = 128,409.12/x - Step 3: Cross multiply
230,385.96x = 317,933.01 × 128,409.12 - Step 4: Simplify right side
230,385.96x = 40,825,498,033.05 - Step 5: Solve for x
x = 40,825,498,033.05/230,385.96 - Step 6: Final answer
x = 177,204.80
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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.