Finding the Fourth Proportional to 287,850.94, 431,563.15 and 137,948.49
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Solution
The fourth proportional to 287,850.94, 431,563.15 and 137,948.49 is: 206,820.53
Step by Step Solution
- Step 1: Write the proportion equation
287,850.94 : 431,563.15 = 137,948.49 : x - Step 2: Convert to fraction form
287,850.94/431,563.15 = 137,948.49/x - Step 3: Cross multiply
287,850.94x = 431,563.15 × 137,948.49 - Step 4: Simplify right side
287,850.94x = 59,533,484,882.14 - Step 5: Solve for x
x = 59,533,484,882.14/287,850.94 - Step 6: Final answer
x = 206,820.53
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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.