Finding the Fourth Proportional to 283,676.22, 391,475.91 and 156,356.70
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Solution
The fourth proportional to 283,676.22, 391,475.91 and 156,356.70 is: 215,773.75
Step by Step Solution
- Step 1: Write the proportion equation
283,676.22 : 391,475.91 = 156,356.70 : x - Step 2: Convert to fraction form
283,676.22/391,475.91 = 156,356.70/x - Step 3: Cross multiply
283,676.22x = 391,475.91 × 156,356.70 - Step 4: Simplify right side
283,676.22x = 61,209,881,417.10 - Step 5: Solve for x
x = 61,209,881,417.10/283,676.22 - Step 6: Final answer
x = 215,773.75
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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.