Finding the Fourth Proportional to 431,907.84, 647,866.08 and 151,431.84
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Solution
The fourth proportional to 431,907.84, 647,866.08 and 151,431.84 is: 227,149.27
Step by Step Solution
- Step 1: Write the proportion equation
431,907.84 : 647,866.08 = 151,431.84 : x - Step 2: Convert to fraction form
431,907.84/647,866.08 = 151,431.84/x - Step 3: Cross multiply
431,907.84x = 647,866.08 × 151,431.84 - Step 4: Simplify right side
431,907.84x = 98,107,552,567.99 - Step 5: Solve for x
x = 98,107,552,567.99/431,907.84 - Step 6: Final answer
x = 227,149.27
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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.