Finding the Fourth Proportional to 82,252.40, 115,415.80 and 82,252.40
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Solution
The fourth proportional to 82,252.40, 115,415.80 and 82,252.40 is: 115,415.80
Step by Step Solution
- Step 1: Write the proportion equation
82,252.40 : 115,415.80 = 82,252.40 : x - Step 2: Convert to fraction form
82,252.40/115,415.80 = 82,252.40/x - Step 3: Cross multiply
82,252.40x = 115,415.80 × 82,252.40 - Step 4: Simplify right side
82,252.40x = 9,493,226,547.92 - Step 5: Solve for x
x = 9,493,226,547.92/82,252.40 - Step 6: Final answer
x = 115,415.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.