Finding the Fourth Proportional to 320,725.10, 480,703.73 and 149,716.74
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Solution
The fourth proportional to 320,725.10, 480,703.73 and 149,716.74 is: 224,395.89
Step by Step Solution
- Step 1: Write the proportion equation
320,725.10 : 480,703.73 = 149,716.74 : x - Step 2: Convert to fraction form
320,725.10/480,703.73 = 149,716.74/x - Step 3: Cross multiply
320,725.10x = 480,703.73 × 149,716.74 - Step 4: Simplify right side
320,725.10x = 71,969,393,933.09 - Step 5: Solve for x
x = 71,969,393,933.09/320,725.10 - Step 6: Final answer
x = 224,395.89
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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.