Finding the Fourth Proportional to 251,125.20, 376,687.80 and 84,913.20
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Solution
The fourth proportional to 251,125.20, 376,687.80 and 84,913.20 is: 127,369.80
Step by Step Solution
- Step 1: Write the proportion equation
251,125.20 : 376,687.80 = 84,913.20 : x - Step 2: Convert to fraction form
251,125.20/376,687.80 = 84,913.20/x - Step 3: Cross multiply
251,125.20x = 376,687.80 × 84,913.20 - Step 4: Simplify right side
251,125.20x = 31,985,766,498.96 - Step 5: Solve for x
x = 31,985,766,498.96/251,125.20 - Step 6: Final answer
x = 127,369.80
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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.