Finding the Fourth Proportional to 282,372.32, 389,700.86 and 161,489.99
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Solution
The fourth proportional to 282,372.32, 389,700.86 and 161,489.99 is: 222,871.66
Step by Step Solution
- Step 1: Write the proportion equation
282,372.32 : 389,700.86 = 161,489.99 : x - Step 2: Convert to fraction form
282,372.32/389,700.86 = 161,489.99/x - Step 3: Cross multiply
282,372.32x = 389,700.86 × 161,489.99 - Step 4: Simplify right side
282,372.32x = 62,932,787,984.39 - Step 5: Solve for x
x = 62,932,787,984.39/282,372.32 - Step 6: Final answer
x = 222,871.66
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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.