Finding the Fourth Proportional to 311,026.62, 465,644.97 and 278,572.23
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Solution
The fourth proportional to 311,026.62, 465,644.97 and 278,572.23 is: 417,056.77
Step by Step Solution
- Step 1: Write the proportion equation
311,026.62 : 465,644.97 = 278,572.23 : x - Step 2: Convert to fraction form
311,026.62/465,644.97 = 278,572.23/x - Step 3: Cross multiply
311,026.62x = 465,644.97 × 278,572.23 - Step 4: Simplify right side
311,026.62x = 129,715,757,681.18 - Step 5: Solve for x
x = 129,715,757,681.18/311,026.62 - Step 6: Final answer
x = 417,056.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.