Finding the Fourth Proportional to 283,412.28, 391,126.64 and 156,087.84
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Solution
The fourth proportional to 283,412.28, 391,126.64 and 156,087.84 is: 215,410.96
Step by Step Solution
- Step 1: Write the proportion equation
283,412.28 : 391,126.64 = 156,087.84 : x - Step 2: Convert to fraction form
283,412.28/391,126.64 = 156,087.84/x - Step 3: Cross multiply
283,412.28x = 391,126.64 × 156,087.84 - Step 4: Simplify right side
283,412.28x = 61,050,112,404.06 - Step 5: Solve for x
x = 61,050,112,404.06/283,412.28 - Step 6: Final answer
x = 215,410.96
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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.