Finding the Fourth Proportional to 206,358.03, 284,763.80 and 121,469.63
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Solution
The fourth proportional to 206,358.03, 284,763.80 and 121,469.63 is: 167,622.03
Step by Step Solution
- Step 1: Write the proportion equation
206,358.03 : 284,763.80 = 121,469.63 : x - Step 2: Convert to fraction form
206,358.03/284,763.80 = 121,469.63/x - Step 3: Cross multiply
206,358.03x = 284,763.80 × 121,469.63 - Step 4: Simplify right side
206,358.03x = 34,590,152,303.25 - Step 5: Solve for x
x = 34,590,152,303.25/206,358.03 - Step 6: Final answer
x = 167,622.03
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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.