Finding the Fourth Proportional to 459,415.21, 634,006.70 and 278,160.30
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Solution
The fourth proportional to 459,415.21, 634,006.70 and 278,160.30 is: 383,869.52
Step by Step Solution
- Step 1: Write the proportion equation
459,415.21 : 634,006.70 = 278,160.30 : x - Step 2: Convert to fraction form
459,415.21/634,006.70 = 278,160.30/x - Step 3: Cross multiply
459,415.21x = 634,006.70 × 278,160.30 - Step 4: Simplify right side
459,415.21x = 176,355,493,874.01 - Step 5: Solve for x
x = 176,355,493,874.01/459,415.21 - Step 6: Final answer
x = 383,869.52
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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.