Finding the Fourth Proportional to 283,194.63, 390,808.70 and 155,869.31
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Solution
The fourth proportional to 283,194.63, 390,808.70 and 155,869.31 is: 215,099.71
Step by Step Solution
- Step 1: Write the proportion equation
283,194.63 : 390,808.70 = 155,869.31 : x - Step 2: Convert to fraction form
283,194.63/390,808.70 = 155,869.31/x - Step 3: Cross multiply
283,194.63x = 390,808.70 × 155,869.31 - Step 4: Simplify right side
283,194.63x = 60,915,083,193.18 - Step 5: Solve for x
x = 60,915,083,193.18/283,194.63 - Step 6: Final answer
x = 215,099.71
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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.