Finding the Fourth Proportional to 283,254.48, 390,891.24 and 155,930.09
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Solution
The fourth proportional to 283,254.48, 390,891.24 and 155,930.09 is: 215,183.55
Step by Step Solution
- Step 1: Write the proportion equation
283,254.48 : 390,891.24 = 155,930.09 : x - Step 2: Convert to fraction form
283,254.48/390,891.24 = 155,930.09/x - Step 3: Cross multiply
283,254.48x = 390,891.24 × 155,930.09 - Step 4: Simplify right side
283,254.48x = 60,951,704,278.96 - Step 5: Solve for x
x = 60,951,704,278.96/283,254.48 - Step 6: Final answer
x = 215,183.55
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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.