Finding the Fourth Proportional to 283,708.80, 391,506.36 and 154,644.44
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Solution
The fourth proportional to 283,708.80, 391,506.36 and 154,644.44 is: 213,402.90
Step by Step Solution
- Step 1: Write the proportion equation
283,708.80 : 391,506.36 = 154,644.44 : x - Step 2: Convert to fraction form
283,708.80/391,506.36 = 154,644.44/x - Step 3: Cross multiply
283,708.80x = 391,506.36 × 154,644.44 - Step 4: Simplify right side
283,708.80x = 60,544,281,798.64 - Step 5: Solve for x
x = 60,544,281,798.64/283,708.80 - Step 6: Final answer
x = 213,402.90
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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.