Finding the Fourth Proportional to 283,622.23, 391,396.80 and 156,297.94
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Solution
The fourth proportional to 283,622.23, 391,396.80 and 156,297.94 is: 215,690.12
Step by Step Solution
- Step 1: Write the proportion equation
283,622.23 : 391,396.80 = 156,297.94 : x - Step 2: Convert to fraction form
283,622.23/391,396.80 = 156,297.94/x - Step 3: Cross multiply
283,622.23x = 391,396.80 × 156,297.94 - Step 4: Simplify right side
283,622.23x = 61,174,513,562.59 - Step 5: Solve for x
x = 61,174,513,562.59/283,622.23 - Step 6: Final answer
x = 215,690.12
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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.