Finding the Fourth Proportional to 422,239.68, 582,690.96 and 231,265.08
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Solution
The fourth proportional to 422,239.68, 582,690.96 and 231,265.08 is: 319,145.92
Step by Step Solution
- Step 1: Write the proportion equation
422,239.68 : 582,690.96 = 231,265.08 : x - Step 2: Convert to fraction form
422,239.68/582,690.96 = 231,265.08/x - Step 3: Cross multiply
422,239.68x = 582,690.96 × 231,265.08 - Step 4: Simplify right side
422,239.68x = 134,756,071,479.68 - Step 5: Solve for x
x = 134,756,071,479.68/422,239.68 - Step 6: Final answer
x = 319,145.92
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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.