Finding the Fourth Proportional to 281,474.36, 388,427.36 and 157,296.36
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Solution
The fourth proportional to 281,474.36, 388,427.36 and 157,296.36 is: 217,064.92
Step by Step Solution
- Step 1: Write the proportion equation
281,474.36 : 388,427.36 = 157,296.36 : x - Step 2: Convert to fraction form
281,474.36/388,427.36 = 157,296.36/x - Step 3: Cross multiply
281,474.36x = 388,427.36 × 157,296.36 - Step 4: Simplify right side
281,474.36x = 61,098,209,852.41 - Step 5: Solve for x
x = 61,098,209,852.41/281,474.36 - Step 6: Final answer
x = 217,064.92
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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.