Finding the Fourth Proportional to 159,850.80, 239,430.60 and 142,340.40
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Solution
The fourth proportional to 159,850.80, 239,430.60 and 142,340.40 is: 213,202.86
Step by Step Solution
- Step 1: Write the proportion equation
159,850.80 : 239,430.60 = 142,340.40 : x - Step 2: Convert to fraction form
159,850.80/239,430.60 = 142,340.40/x - Step 3: Cross multiply
159,850.80x = 239,430.60 × 142,340.40 - Step 4: Simplify right side
159,850.80x = 34,080,647,376.24 - Step 5: Solve for x
x = 34,080,647,376.24/159,850.80 - Step 6: Final answer
x = 213,202.86
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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.