Finding the Fourth Proportional to 243,285.85, 335,892.45 and 217,747.99
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Solution
The fourth proportional to 243,285.85, 335,892.45 and 217,747.99 is: 300,633.62
Step by Step Solution
- Step 1: Write the proportion equation
243,285.85 : 335,892.45 = 217,747.99 : x - Step 2: Convert to fraction form
243,285.85/335,892.45 = 217,747.99/x - Step 3: Cross multiply
243,285.85x = 335,892.45 × 217,747.99 - Step 4: Simplify right side
243,285.85x = 73,139,905,843.68 - Step 5: Solve for x
x = 73,139,905,843.68/243,285.85 - Step 6: Final answer
x = 300,633.62
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1.5x scale
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.