Finding the Fourth Proportional to 343,742.80, 515,176.80 and 165,866.80
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Solution
The fourth proportional to 343,742.80, 515,176.80 and 165,866.80 is: 248,589.14
Step by Step Solution
- Step 1: Write the proportion equation
343,742.80 : 515,176.80 = 165,866.80 : x - Step 2: Convert to fraction form
343,742.80/515,176.80 = 165,866.80/x - Step 3: Cross multiply
343,742.80x = 515,176.80 × 165,866.80 - Step 4: Simplify right side
343,742.80x = 85,450,727,250.24 - Step 5: Solve for x
x = 85,450,727,250.24/343,742.80 - Step 6: Final answer
x = 248,589.14
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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.