Finding the Fourth Proportional to 206,165.53, 284,503.62 and 121,288.06
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Solution
The fourth proportional to 206,165.53, 284,503.62 and 121,288.06 is: 167,374.69
Step by Step Solution
- Step 1: Write the proportion equation
206,165.53 : 284,503.62 = 121,288.06 : x - Step 2: Convert to fraction form
206,165.53/284,503.62 = 121,288.06/x - Step 3: Cross multiply
206,165.53x = 284,503.62 × 121,288.06 - Step 4: Simplify right side
206,165.53x = 34,506,892,132.78 - Step 5: Solve for x
x = 34,506,892,132.78/206,165.53 - Step 6: Final answer
x = 167,374.69
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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.