Finding the Fourth Proportional to 281,475.36, 388,428.74 and 157,297.36
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Solution
The fourth proportional to 281,475.36, 388,428.74 and 157,297.36 is: 217,066.30
Step by Step Solution
- Step 1: Write the proportion equation
281,475.36 : 388,428.74 = 157,297.36 : x - Step 2: Convert to fraction form
281,475.36/388,428.74 = 157,297.36/x - Step 3: Cross multiply
281,475.36x = 388,428.74 × 157,297.36 - Step 4: Simplify right side
281,475.36x = 61,098,815,350.13 - Step 5: Solve for x
x = 61,098,815,350.13/281,475.36 - Step 6: Final answer
x = 217,066.30
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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.