Finding the Fourth Proportional to 283,706.48, 391,503.16 and 154,642.12
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Solution
The fourth proportional to 283,706.48, 391,503.16 and 154,642.12 is: 213,399.70
Step by Step Solution
- Step 1: Write the proportion equation
283,706.48 : 391,503.16 = 154,642.12 : x - Step 2: Convert to fraction form
283,706.48/391,503.16 = 154,642.12/x - Step 3: Cross multiply
283,706.48x = 391,503.16 × 154,642.12 - Step 4: Simplify right side
283,706.48x = 60,542,878,649.10 - Step 5: Solve for x
x = 60,542,878,649.10/283,706.48 - Step 6: Final answer
x = 213,399.70
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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.