Finding the Fourth Proportional to 386,201.80, 579,302.70 and 260,230.60
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Solution
The fourth proportional to 386,201.80, 579,302.70 and 260,230.60 is: 390,345.90
Step by Step Solution
- Step 1: Write the proportion equation
386,201.80 : 579,302.70 = 260,230.60 : x - Step 2: Convert to fraction form
386,201.80/579,302.70 = 260,230.60/x - Step 3: Cross multiply
386,201.80x = 579,302.70 × 260,230.60 - Step 4: Simplify right side
386,201.80x = 150,752,289,202.62 - Step 5: Solve for x
x = 150,752,289,202.62/386,201.80 - Step 6: Final answer
x = 390,345.90
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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.