Finding the Fourth Proportional to 421,897.84, 582,216.93 and 228,305.41
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Solution
The fourth proportional to 421,897.84, 582,216.93 and 228,305.41 is: 315,060.33
Step by Step Solution
- Step 1: Write the proportion equation
421,897.84 : 582,216.93 = 228,305.41 : x - Step 2: Convert to fraction form
421,897.84/582,216.93 = 228,305.41/x - Step 3: Cross multiply
421,897.84x = 582,216.93 × 228,305.41 - Step 4: Simplify right side
421,897.84x = 132,923,273,457.05 - Step 5: Solve for x
x = 132,923,273,457.05/421,897.84 - Step 6: Final answer
x = 315,060.33
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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.