Finding the Fourth Proportional to 421,898.60, 582,217.97 and 228,306.17
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Solution
The fourth proportional to 421,898.60, 582,217.97 and 228,306.17 is: 315,061.37
Step by Step Solution
- Step 1: Write the proportion equation
421,898.60 : 582,217.97 = 228,306.17 : x - Step 2: Convert to fraction form
421,898.60/582,217.97 = 228,306.17/x - Step 3: Cross multiply
421,898.60x = 582,217.97 × 228,306.17 - Step 4: Simplify right side
421,898.60x = 132,923,950,783.25 - Step 5: Solve for x
x = 132,923,950,783.25/421,898.60 - Step 6: Final answer
x = 315,061.37
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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.