Finding the Fourth Proportional to 416,135.20, 624,202.80 and 206,183.20
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Solution
The fourth proportional to 416,135.20, 624,202.80 and 206,183.20 is: 309,274.80
Step by Step Solution
- Step 1: Write the proportion equation
416,135.20 : 624,202.80 = 206,183.20 : x - Step 2: Convert to fraction form
416,135.20/624,202.80 = 206,183.20/x - Step 3: Cross multiply
416,135.20x = 624,202.80 × 206,183.20 - Step 4: Simplify right side
416,135.20x = 128,700,130,752.96 - Step 5: Solve for x
x = 128,700,130,752.96/416,135.20 - Step 6: Final answer
x = 309,274.80
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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.