Finding the Fourth Proportional to 259,590.80, 389,386.20 and 141,201.20
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Solution
The fourth proportional to 259,590.80, 389,386.20 and 141,201.20 is: 211,801.80
Step by Step Solution
- Step 1: Write the proportion equation
259,590.80 : 389,386.20 = 141,201.20 : x - Step 2: Convert to fraction form
259,590.80/389,386.20 = 141,201.20/x - Step 3: Cross multiply
259,590.80x = 389,386.20 × 141,201.20 - Step 4: Simplify right side
259,590.80x = 54,981,798,703.44 - Step 5: Solve for x
x = 54,981,798,703.44/259,590.80 - Step 6: Final answer
x = 211,801.80
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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.