Finding the Fourth Proportional to 355,739.20, 532,296.60 and 324,246.40
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Solution
The fourth proportional to 355,739.20, 532,296.60 and 324,246.40 is: 485,173.57
Step by Step Solution
- Step 1: Write the proportion equation
355,739.20 : 532,296.60 = 324,246.40 : x - Step 2: Convert to fraction form
355,739.20/532,296.60 = 324,246.40/x - Step 3: Cross multiply
355,739.20x = 532,296.60 × 324,246.40 - Step 4: Simplify right side
355,739.20x = 172,595,256,282.24 - Step 5: Solve for x
x = 172,595,256,282.24/355,739.20 - Step 6: Final answer
x = 485,173.57
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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.