Finding the Fourth Proportional to 858,130.20, 1,287,195.30 and 227,107.80
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Solution
The fourth proportional to 858,130.20, 1,287,195.30 and 227,107.80 is: 340,661.70
Step by Step Solution
- Step 1: Write the proportion equation
858,130.20 : 1,287,195.30 = 227,107.80 : x - Step 2: Convert to fraction form
858,130.20/1,287,195.30 = 227,107.80/x - Step 3: Cross multiply
858,130.20x = 1,287,195.30 × 227,107.80 - Step 4: Simplify right side
858,130.20x = 292,332,092,753.34 - Step 5: Solve for x
x = 292,332,092,753.34/858,130.20 - Step 6: Final answer
x = 340,661.70
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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.