Finding the Fourth Proportional to 307,198.13, 460,874.97 and 85,582.13
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Solution
The fourth proportional to 307,198.13, 460,874.97 and 85,582.13 is: 128,394.86
Step by Step Solution
- Step 1: Write the proportion equation
307,198.13 : 460,874.97 = 85,582.13 : x - Step 2: Convert to fraction form
307,198.13/460,874.97 = 85,582.13/x - Step 3: Cross multiply
307,198.13x = 460,874.97 × 85,582.13 - Step 4: Simplify right side
307,198.13x = 39,442,659,291.91 - Step 5: Solve for x
x = 39,442,659,291.91/307,198.13 - Step 6: Final answer
x = 128,394.86
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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.