Finding the Fourth Proportional to 221,421.24, 305,485.14 and 134,234.46
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Solution
The fourth proportional to 221,421.24, 305,485.14 and 134,234.46 is: 185,197.38
Step by Step Solution
- Step 1: Write the proportion equation
221,421.24 : 305,485.14 = 134,234.46 : x - Step 2: Convert to fraction form
221,421.24/305,485.14 = 134,234.46/x - Step 3: Cross multiply
221,421.24x = 305,485.14 × 134,234.46 - Step 4: Simplify right side
221,421.24x = 41,006,632,622.59 - Step 5: Solve for x
x = 41,006,632,622.59/221,421.24 - Step 6: Final answer
x = 185,197.38
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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.