Finding the Fourth Proportional to 217,902.24, 300,705.11 and 121,106.08
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Solution
The fourth proportional to 217,902.24, 300,705.11 and 121,106.08 is: 167,126.40
Step by Step Solution
- Step 1: Write the proportion equation
217,902.24 : 300,705.11 = 121,106.08 : x - Step 2: Convert to fraction form
217,902.24/300,705.11 = 121,106.08/x - Step 3: Cross multiply
217,902.24x = 300,705.11 × 121,106.08 - Step 4: Simplify right side
217,902.24x = 36,417,215,907.31 - Step 5: Solve for x
x = 36,417,215,907.31/217,902.24 - Step 6: Final answer
x = 167,126.40
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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.