Finding the Fourth Proportional to 251,028.20, 376,542.30 and 84,813.80
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Solution
The fourth proportional to 251,028.20, 376,542.30 and 84,813.80 is: 127,220.70
Step by Step Solution
- Step 1: Write the proportion equation
251,028.20 : 376,542.30 = 84,813.80 : x - Step 2: Convert to fraction form
251,028.20/376,542.30 = 84,813.80/x - Step 3: Cross multiply
251,028.20x = 376,542.30 × 84,813.80 - Step 4: Simplify right side
251,028.20x = 31,935,983,323.74 - Step 5: Solve for x
x = 31,935,983,323.74/251,028.20 - Step 6: Final answer
x = 127,220.70
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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.