Finding the Fourth Proportional to 309,124.96, 426,371.11 and 283,713.23
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Solution
The fourth proportional to 309,124.96, 426,371.11 and 283,713.23 is: 391,321.12
Step by Step Solution
- Step 1: Write the proportion equation
309,124.96 : 426,371.11 = 283,713.23 : x - Step 2: Convert to fraction form
309,124.96/426,371.11 = 283,713.23/x - Step 3: Cross multiply
309,124.96x = 426,371.11 × 283,713.23 - Step 4: Simplify right side
309,124.96x = 120,967,125,153.43 - Step 5: Solve for x
x = 120,967,125,153.43/309,124.96 - Step 6: Final answer
x = 391,321.12
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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.