Finding the Fourth Proportional to 205,749.99, 308,622.77 and 156,134.79
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Solution
The fourth proportional to 205,749.99, 308,622.77 and 156,134.79 is: 234,200.50
Step by Step Solution
- Step 1: Write the proportion equation
205,749.99 : 308,622.77 = 156,134.79 : x - Step 2: Convert to fraction form
205,749.99/308,622.77 = 156,134.79/x - Step 3: Cross multiply
205,749.99x = 308,622.77 × 156,134.79 - Step 4: Simplify right side
205,749.99x = 48,186,750,602.49 - Step 5: Solve for x
x = 48,186,750,602.49/205,749.99 - Step 6: Final answer
x = 234,200.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.