Finding the Fourth Proportional to 213,485.42, 294,625.13 and 117,990.06
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Solution
The fourth proportional to 213,485.42, 294,625.13 and 117,990.06 is: 162,834.72
Step by Step Solution
- Step 1: Write the proportion equation
213,485.42 : 294,625.13 = 117,990.06 : x - Step 2: Convert to fraction form
213,485.42/294,625.13 = 117,990.06/x - Step 3: Cross multiply
213,485.42x = 294,625.13 × 117,990.06 - Step 4: Simplify right side
213,485.42x = 34,762,836,766.21 - Step 5: Solve for x
x = 34,762,836,766.21/213,485.42 - Step 6: Final answer
x = 162,834.72
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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.