Finding the Fourth Proportional to 217,477.74, 300,119.67 and 121,984.14
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Solution
The fourth proportional to 217,477.74, 300,119.67 and 121,984.14 is: 168,338.33
Step by Step Solution
- Step 1: Write the proportion equation
217,477.74 : 300,119.67 = 121,984.14 : x - Step 2: Convert to fraction form
217,477.74/300,119.67 = 121,984.14/x - Step 3: Cross multiply
217,477.74x = 300,119.67 × 121,984.14 - Step 4: Simplify right side
217,477.74x = 36,609,839,842.03 - Step 5: Solve for x
x = 36,609,839,842.03/217,477.74 - Step 6: Final answer
x = 168,338.33
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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.