Finding the Fourth Proportional to 199,357.31, 275,119.97 and 113,319.87
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Solution
The fourth proportional to 199,357.31, 275,119.97 and 113,319.87 is: 156,385.33
Step by Step Solution
- Step 1: Write the proportion equation
199,357.31 : 275,119.97 = 113,319.87 : x - Step 2: Convert to fraction form
199,357.31/275,119.97 = 113,319.87/x - Step 3: Cross multiply
199,357.31x = 275,119.97 × 113,319.87 - Step 4: Simplify right side
199,357.31x = 31,176,558,668.20 - Step 5: Solve for x
x = 31,176,558,668.20/199,357.31 - Step 6: Final answer
x = 156,385.33
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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.