Finding the Fourth Proportional to 422,971.93, 583,716.14 and 231,986.08
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Solution
The fourth proportional to 422,971.93, 583,716.14 and 231,986.08 is: 320,148.95
Step by Step Solution
- Step 1: Write the proportion equation
422,971.93 : 583,716.14 = 231,986.08 : x - Step 2: Convert to fraction form
422,971.93/583,716.14 = 231,986.08/x - Step 3: Cross multiply
422,971.93x = 583,716.14 × 231,986.08 - Step 4: Simplify right side
422,971.93x = 135,414,019,151.33 - Step 5: Solve for x
x = 135,414,019,151.33/422,971.93 - Step 6: Final answer
x = 320,148.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.