Finding the Fourth Proportional to 343,453.20, 514,939.80 and 203,139.60
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Solution
The fourth proportional to 343,453.20, 514,939.80 and 203,139.60 is: 304,567.45
Step by Step Solution
- Step 1: Write the proportion equation
343,453.20 : 514,939.80 = 203,139.60 : x - Step 2: Convert to fraction form
343,453.20/514,939.80 = 203,139.60/x - Step 3: Cross multiply
343,453.20x = 514,939.80 × 203,139.60 - Step 4: Simplify right side
343,453.20x = 104,604,664,996.08 - Step 5: Solve for x
x = 104,604,664,996.08/343,453.20 - Step 6: Final answer
x = 304,567.45
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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.