Finding the Fourth Proportional to 208,914.02, 288,302.55 and 122,876.65
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Solution
The fourth proportional to 208,914.02, 288,302.55 and 122,876.65 is: 169,570.48
Step by Step Solution
- Step 1: Write the proportion equation
208,914.02 : 288,302.55 = 122,876.65 : x - Step 2: Convert to fraction form
208,914.02/288,302.55 = 122,876.65/x - Step 3: Cross multiply
208,914.02x = 288,302.55 × 122,876.65 - Step 4: Simplify right side
208,914.02x = 35,425,650,088.94 - Step 5: Solve for x
x = 35,425,650,088.94/208,914.02 - Step 6: Final answer
x = 169,570.48
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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.