Finding the Fourth Proportional to 243,237.28, 335,578.80 and 142,615.84
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Solution
The fourth proportional to 243,237.28, 335,578.80 and 142,615.84 is: 196,757.88
Step by Step Solution
- Step 1: Write the proportion equation
243,237.28 : 335,578.80 = 142,615.84 : x - Step 2: Convert to fraction form
243,237.28/335,578.80 = 142,615.84/x - Step 3: Cross multiply
243,237.28x = 335,578.80 × 142,615.84 - Step 4: Simplify right side
243,237.28x = 47,858,852,448.19 - Step 5: Solve for x
x = 47,858,852,448.19/243,237.28 - Step 6: Final answer
x = 196,757.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.