Finding the Fourth Proportional to 338,456.62, 507,680.99 and 82,290.63
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Solution
The fourth proportional to 338,456.62, 507,680.99 and 82,290.63 is: 123,434.99
Step by Step Solution
- Step 1: Write the proportion equation
338,456.62 : 507,680.99 = 82,290.63 : x - Step 2: Convert to fraction form
338,456.62/507,680.99 = 82,290.63/x - Step 3: Cross multiply
338,456.62x = 507,680.99 × 82,290.63 - Step 4: Simplify right side
338,456.62x = 41,777,388,506.12 - Step 5: Solve for x
x = 41,777,388,506.12/338,456.62 - Step 6: Final answer
x = 123,434.99
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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.