Finding the Fourth Proportional to 261,975.68, 361,526.44 and 142,743.68
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Solution
The fourth proportional to 261,975.68, 361,526.44 and 142,743.68 is: 196,986.28
Step by Step Solution
- Step 1: Write the proportion equation
261,975.68 : 361,526.44 = 142,743.68 : x - Step 2: Convert to fraction form
261,975.68/361,526.44 = 142,743.68/x - Step 3: Cross multiply
261,975.68x = 361,526.44 × 142,743.68 - Step 4: Simplify right side
261,975.68x = 51,605,614,462.90 - Step 5: Solve for x
x = 51,605,614,462.90/261,975.68 - Step 6: Final answer
x = 196,986.28
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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.