Finding the Fourth Proportional to 347,948.40, 480,399.08 and 267,231.09
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Solution
The fourth proportional to 347,948.40, 480,399.08 and 267,231.09 is: 368,955.77
Step by Step Solution
- Step 1: Write the proportion equation
347,948.40 : 480,399.08 = 267,231.09 : x - Step 2: Convert to fraction form
347,948.40/480,399.08 = 267,231.09/x - Step 3: Cross multiply
347,948.40x = 480,399.08 × 267,231.09 - Step 4: Simplify right side
347,948.40x = 128,377,568,447.24 - Step 5: Solve for x
x = 128,377,568,447.24/347,948.40 - Step 6: Final answer
x = 368,955.77
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1.5x scale
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.