Finding the Fourth Proportional to 320,920.68, 481,528.50 and 121,310.40
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Solution
The fourth proportional to 320,920.68, 481,528.50 and 121,310.40 is: 182,021.35
Step by Step Solution
- Step 1: Write the proportion equation
320,920.68 : 481,528.50 = 121,310.40 : x - Step 2: Convert to fraction form
320,920.68/481,528.50 = 121,310.40/x - Step 3: Cross multiply
320,920.68x = 481,528.50 × 121,310.40 - Step 4: Simplify right side
320,920.68x = 58,414,414,946.40 - Step 5: Solve for x
x = 58,414,414,946.40/320,920.68 - Step 6: Final answer
x = 182,021.35
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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.