Finding the Fourth Proportional to 308,318.41, 425,481.11 and 172,358.08
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Solution
The fourth proportional to 308,318.41, 425,481.11 and 172,358.08 is: 237,855.10
Step by Step Solution
- Step 1: Write the proportion equation
308,318.41 : 425,481.11 = 172,358.08 : x - Step 2: Convert to fraction form
308,318.41/425,481.11 = 172,358.08/x - Step 3: Cross multiply
308,318.41x = 425,481.11 × 172,358.08 - Step 4: Simplify right side
308,318.41x = 73,335,106,334.08 - Step 5: Solve for x
x = 73,335,106,334.08/308,318.41 - Step 6: Final answer
x = 237,855.10
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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.