Finding the Fourth Proportional to 358,717.68, 491,445.36 and 345,265.20
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Solution
The fourth proportional to 358,717.68, 491,445.36 and 345,265.20 is: 473,015.38
Step by Step Solution
- Step 1: Write the proportion equation
358,717.68 : 491,445.36 = 345,265.20 : x - Step 2: Convert to fraction form
358,717.68/491,445.36 = 345,265.20/x - Step 3: Cross multiply
358,717.68x = 491,445.36 × 345,265.20 - Step 4: Simplify right side
358,717.68x = 169,678,980,509.47 - Step 5: Solve for x
x = 169,678,980,509.47/358,717.68 - Step 6: Final answer
x = 473,015.38
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.