Finding the Fourth Proportional to 307,201.20, 460,866.60 and 129,616.80
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Solution
The fourth proportional to 307,201.20, 460,866.60 and 129,616.80 is: 194,452.54
Step by Step Solution
- Step 1: Write the proportion equation
307,201.20 : 460,866.60 = 129,616.80 : x - Step 2: Convert to fraction form
307,201.20/460,866.60 = 129,616.80/x - Step 3: Cross multiply
307,201.20x = 460,866.60 × 129,616.80 - Step 4: Simplify right side
307,201.20x = 59,736,053,918.88 - Step 5: Solve for x
x = 59,736,053,918.88/307,201.20 - Step 6: Final answer
x = 194,452.54
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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.