Finding the Fourth Proportional to 281,948.68, 389,032.68 and 161,129.62
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Solution
The fourth proportional to 281,948.68, 389,032.68 and 161,129.62 is: 222,326.59
Step by Step Solution
- Step 1: Write the proportion equation
281,948.68 : 389,032.68 = 161,129.62 : x - Step 2: Convert to fraction form
281,948.68/389,032.68 = 161,129.62/x - Step 3: Cross multiply
281,948.68x = 389,032.68 × 161,129.62 - Step 4: Simplify right side
281,948.68x = 62,684,687,895.98 - Step 5: Solve for x
x = 62,684,687,895.98/281,948.68 - Step 6: Final answer
x = 222,326.59
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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.