Finding the Fourth Proportional to 235,555.20, 352,814.40 and 209,289.60
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Solution
The fourth proportional to 235,555.20, 352,814.40 and 209,289.60 is: 313,473.80
Step by Step Solution
- Step 1: Write the proportion equation
235,555.20 : 352,814.40 = 209,289.60 : x - Step 2: Convert to fraction form
235,555.20/352,814.40 = 209,289.60/x - Step 3: Cross multiply
235,555.20x = 352,814.40 × 209,289.60 - Step 4: Simplify right side
235,555.20x = 73,840,384,650.24 - Step 5: Solve for x
x = 73,840,384,650.24/235,555.20 - Step 6: Final answer
x = 313,473.80
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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.