Finding the Fourth Proportional to 201,496.80, 302,901.30 and 142,739.40
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Solution
The fourth proportional to 201,496.80, 302,901.30 and 142,739.40 is: 214,573.88
Step by Step Solution
- Step 1: Write the proportion equation
201,496.80 : 302,901.30 = 142,739.40 : x - Step 2: Convert to fraction form
201,496.80/302,901.30 = 142,739.40/x - Step 3: Cross multiply
201,496.80x = 302,901.30 × 142,739.40 - Step 4: Simplify right side
201,496.80x = 43,235,949,821.22 - Step 5: Solve for x
x = 43,235,949,821.22/201,496.80 - Step 6: Final answer
x = 214,573.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.