Finding the Fourth Proportional to 283,245.48, 390,882.78 and 154,187.91
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Solution
The fourth proportional to 283,245.48, 390,882.78 and 154,187.91 is: 212,781.50
Step by Step Solution
- Step 1: Write the proportion equation
283,245.48 : 390,882.78 = 154,187.91 : x - Step 2: Convert to fraction form
283,245.48/390,882.78 = 154,187.91/x - Step 3: Cross multiply
283,245.48x = 390,882.78 × 154,187.91 - Step 4: Simplify right side
283,245.48x = 60,269,398,903.19 - Step 5: Solve for x
x = 60,269,398,903.19/283,245.48 - Step 6: Final answer
x = 212,781.50
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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.