Finding the Fourth Proportional to 343,495.20, 515,437.68 and 133,147.68
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Solution
The fourth proportional to 343,495.20, 515,437.68 and 133,147.68 is: 199,797.06
Step by Step Solution
- Step 1: Write the proportion equation
343,495.20 : 515,437.68 = 133,147.68 : x - Step 2: Convert to fraction form
343,495.20/515,437.68 = 133,147.68/x - Step 3: Cross multiply
343,495.20x = 515,437.68 × 133,147.68 - Step 4: Simplify right side
343,495.20x = 68,629,331,276.58 - Step 5: Solve for x
x = 68,629,331,276.58/343,495.20 - Step 6: Final answer
x = 199,797.06
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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.