Finding the Fourth Proportional to 343,869.20, 515,992.08 and 133,515.44
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Solution
The fourth proportional to 343,869.20, 515,992.08 and 133,515.44 is: 200,346.26
Step by Step Solution
- Step 1: Write the proportion equation
343,869.20 : 515,992.08 = 133,515.44 : x - Step 2: Convert to fraction form
343,869.20/515,992.08 = 133,515.44/x - Step 3: Cross multiply
343,869.20x = 515,992.08 × 133,515.44 - Step 4: Simplify right side
343,869.20x = 68,892,909,597.72 - Step 5: Solve for x
x = 68,892,909,597.72/343,869.20 - Step 6: Final answer
x = 200,346.26
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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.