Finding the Fourth Proportional to 311,265.99, 466,909.92 and 100,905.75
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Solution
The fourth proportional to 311,265.99, 466,909.92 and 100,905.75 is: 151,362.17
Step by Step Solution
- Step 1: Write the proportion equation
311,265.99 : 466,909.92 = 100,905.75 : x - Step 2: Convert to fraction form
311,265.99/466,909.92 = 100,905.75/x - Step 3: Cross multiply
311,265.99x = 466,909.92 × 100,905.75 - Step 4: Simplify right side
311,265.99x = 47,113,895,660.04 - Step 5: Solve for x
x = 47,113,895,660.04/311,265.99 - Step 6: Final answer
x = 151,362.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.