Finding the Fourth Proportional to 210,796.62, 316,195.47 and 86,137.62
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Solution
The fourth proportional to 210,796.62, 316,195.47 and 86,137.62 is: 129,206.65
Step by Step Solution
- Step 1: Write the proportion equation
210,796.62 : 316,195.47 = 86,137.62 : x - Step 2: Convert to fraction form
210,796.62/316,195.47 = 86,137.62/x - Step 3: Cross multiply
210,796.62x = 316,195.47 × 86,137.62 - Step 4: Simplify right side
210,796.62x = 27,236,325,240.58 - Step 5: Solve for x
x = 27,236,325,240.58/210,796.62 - Step 6: Final answer
x = 129,206.65
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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.