Finding the Fourth Proportional to 284,363.84, 392,241.86 and 216,231.44
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Solution
The fourth proportional to 284,363.84, 392,241.86 and 216,231.44 is: 298,262.33
Step by Step Solution
- Step 1: Write the proportion equation
284,363.84 : 392,241.86 = 216,231.44 : x - Step 2: Convert to fraction form
284,363.84/392,241.86 = 216,231.44/x - Step 3: Cross multiply
284,363.84x = 392,241.86 × 216,231.44 - Step 4: Simplify right side
284,363.84x = 84,815,022,216.08 - Step 5: Solve for x
x = 84,815,022,216.08/284,363.84 - Step 6: Final answer
x = 298,262.33
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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.