Finding the Fourth Proportional to 309,358.08, 427,057.92 and 232,907.52
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Solution
The fourth proportional to 309,358.08, 427,057.92 and 232,907.52 is: 321,520.62
Step by Step Solution
- Step 1: Write the proportion equation
309,358.08 : 427,057.92 = 232,907.52 : x - Step 2: Convert to fraction form
309,358.08/427,057.92 = 232,907.52/x - Step 3: Cross multiply
309,358.08x = 427,057.92 × 232,907.52 - Step 4: Simplify right side
309,358.08x = 99,465,001,043.56 - Step 5: Solve for x
x = 99,465,001,043.56/309,358.08 - Step 6: Final answer
x = 321,520.62
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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.