Finding the Fourth Proportional to 286,175.44, 429,207.81 and 143,982.68
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Solution
The fourth proportional to 286,175.44, 429,207.81 and 143,982.68 is: 215,946.17
Step by Step Solution
- Step 1: Write the proportion equation
286,175.44 : 429,207.81 = 143,982.68 : x - Step 2: Convert to fraction form
286,175.44/429,207.81 = 143,982.68/x - Step 3: Cross multiply
286,175.44x = 429,207.81 × 143,982.68 - Step 4: Simplify right side
286,175.44x = 61,798,491,293.18 - Step 5: Solve for x
x = 61,798,491,293.18/286,175.44 - Step 6: Final answer
x = 215,946.17
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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.