Finding the Fourth Proportional to 367,139.20, 550,276.80 and 209,516.80
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Solution
The fourth proportional to 367,139.20, 550,276.80 and 209,516.80 is: 314,028.67
Step by Step Solution
- Step 1: Write the proportion equation
367,139.20 : 550,276.80 = 209,516.80 : x - Step 2: Convert to fraction form
367,139.20/550,276.80 = 209,516.80/x - Step 3: Cross multiply
367,139.20x = 550,276.80 × 209,516.80 - Step 4: Simplify right side
367,139.20x = 115,292,234,250.24 - Step 5: Solve for x
x = 115,292,234,250.24/367,139.20 - Step 6: Final answer
x = 314,028.67
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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.