Finding the Fourth Proportional to 217,335.73, 299,923.10 and 121,842.44
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Solution
The fourth proportional to 217,335.73, 299,923.10 and 121,842.44 is: 168,142.46
Step by Step Solution
- Step 1: Write the proportion equation
217,335.73 : 299,923.10 = 121,842.44 : x - Step 2: Convert to fraction form
217,335.73/299,923.10 = 121,842.44/x - Step 3: Cross multiply
217,335.73x = 299,923.10 × 121,842.44 - Step 4: Simplify right side
217,335.73x = 36,543,363,066.17 - Step 5: Solve for x
x = 36,543,363,066.17/217,335.73 - Step 6: Final answer
x = 168,142.46
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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.