Finding the Fourth Proportional to 251,201.20, 376,801.80 and 84,989.20
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Solution
The fourth proportional to 251,201.20, 376,801.80 and 84,989.20 is: 127,483.80
Step by Step Solution
- Step 1: Write the proportion equation
251,201.20 : 376,801.80 = 84,989.20 : x - Step 2: Convert to fraction form
251,201.20/376,801.80 = 84,989.20/x - Step 3: Cross multiply
251,201.20x = 376,801.80 × 84,989.20 - Step 4: Simplify right side
251,201.20x = 32,024,083,540.56 - Step 5: Solve for x
x = 32,024,083,540.56/251,201.20 - Step 6: Final answer
x = 127,483.80
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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.