Finding the Fourth Proportional to 283,865.97, 391,730.10 and 154,805.44
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Solution
The fourth proportional to 283,865.97, 391,730.10 and 154,805.44 is: 213,628.82
Step by Step Solution
- Step 1: Write the proportion equation
283,865.97 : 391,730.10 = 154,805.44 : x - Step 2: Convert to fraction form
283,865.97/391,730.10 = 154,805.44/x - Step 3: Cross multiply
283,865.97x = 391,730.10 × 154,805.44 - Step 4: Simplify right side
283,865.97x = 60,641,950,491.74 - Step 5: Solve for x
x = 60,641,950,491.74/283,865.97 - Step 6: Final answer
x = 213,628.82
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1.5x scale
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.