Finding the Fourth Proportional to 155,287.20, 232,930.80 and 106,135.20
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Solution
The fourth proportional to 155,287.20, 232,930.80 and 106,135.20 is: 159,202.80
Step by Step Solution
- Step 1: Write the proportion equation
155,287.20 : 232,930.80 = 106,135.20 : x - Step 2: Convert to fraction form
155,287.20/232,930.80 = 106,135.20/x - Step 3: Cross multiply
155,287.20x = 232,930.80 × 106,135.20 - Step 4: Simplify right side
155,287.20x = 24,722,157,044.16 - Step 5: Solve for x
x = 24,722,157,044.16/155,287.20 - Step 6: Final answer
x = 159,202.80
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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.