Finding the Fourth Proportional to 331,825.68, 497,743.20 and 82,507.68
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Solution
The fourth proportional to 331,825.68, 497,743.20 and 82,507.68 is: 123,762.68
Step by Step Solution
- Step 1: Write the proportion equation
331,825.68 : 497,743.20 = 82,507.68 : x - Step 2: Convert to fraction form
331,825.68/497,743.20 = 82,507.68/x - Step 3: Cross multiply
331,825.68x = 497,743.20 × 82,507.68 - Step 4: Simplify right side
331,825.68x = 41,067,636,667.78 - Step 5: Solve for x
x = 41,067,636,667.78/331,825.68 - Step 6: Final answer
x = 123,762.68
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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.