Finding the Fourth Proportional to 320,851.70, 481,277.55 and 305,299.70
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Solution
The fourth proportional to 320,851.70, 481,277.55 and 305,299.70 is: 457,949.55
Step by Step Solution
- Step 1: Write the proportion equation
320,851.70 : 481,277.55 = 305,299.70 : x - Step 2: Convert to fraction form
320,851.70/481,277.55 = 305,299.70/x - Step 3: Cross multiply
320,851.70x = 481,277.55 × 305,299.70 - Step 4: Simplify right side
320,851.70x = 146,933,891,631.74 - Step 5: Solve for x
x = 146,933,891,631.74/320,851.70 - Step 6: Final answer
x = 457,949.55
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1.5x scale
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.