Finding the Fourth Proportional to 203,542.18, 280,881.55 and 122,955.67
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Solution
The fourth proportional to 203,542.18, 280,881.55 and 122,955.67 is: 169,674.80
Step by Step Solution
- Step 1: Write the proportion equation
203,542.18 : 280,881.55 = 122,955.67 : x - Step 2: Convert to fraction form
203,542.18/280,881.55 = 122,955.67/x - Step 3: Cross multiply
203,542.18x = 280,881.55 × 122,955.67 - Step 4: Simplify right side
203,542.18x = 34,535,979,170.89 - Step 5: Solve for x
x = 34,535,979,170.89/203,542.18 - Step 6: Final answer
x = 169,674.80
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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.