Finding the Fourth Proportional to 230,446.29, 317,990.20 and 128,464.05
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Solution
The fourth proportional to 230,446.29, 317,990.20 and 128,464.05 is: 177,266.07
Step by Step Solution
- Step 1: Write the proportion equation
230,446.29 : 317,990.20 = 128,464.05 : x - Step 2: Convert to fraction form
230,446.29/317,990.20 = 128,464.05/x - Step 3: Cross multiply
230,446.29x = 317,990.20 × 128,464.05 - Step 4: Simplify right side
230,446.29x = 40,850,308,952.31 - Step 5: Solve for x
x = 40,850,308,952.31/230,446.29 - Step 6: Final answer
x = 177,266.07
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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.