Finding the Fourth Proportional to 283,779.68, 391,618.68 and 156,459.92
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Solution
The fourth proportional to 283,779.68, 391,618.68 and 156,459.92 is: 215,916.19
Step by Step Solution
- Step 1: Write the proportion equation
283,779.68 : 391,618.68 = 156,459.92 : x - Step 2: Convert to fraction form
283,779.68/391,618.68 = 156,459.92/x - Step 3: Cross multiply
283,779.68x = 391,618.68 × 156,459.92 - Step 4: Simplify right side
283,779.68x = 61,272,627,343.31 - Step 5: Solve for x
x = 61,272,627,343.31/283,779.68 - Step 6: Final answer
x = 215,916.19
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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.