Finding the Fourth Proportional to 213,139.27, 294,132.21 and 117,645.99
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Solution
The fourth proportional to 213,139.27, 294,132.21 and 117,645.99 is: 162,351.47
Step by Step Solution
- Step 1: Write the proportion equation
213,139.27 : 294,132.21 = 117,645.99 : x - Step 2: Convert to fraction form
213,139.27/294,132.21 = 117,645.99/x - Step 3: Cross multiply
213,139.27x = 294,132.21 × 117,645.99 - Step 4: Simplify right side
213,139.27x = 34,603,474,153.93 - Step 5: Solve for x
x = 34,603,474,153.93/213,139.27 - Step 6: Final answer
x = 162,351.47
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1.5x scale
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.