Finding the Fourth Proportional to 217,860.84, 300,641.97 and 121,062.21
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Solution
The fourth proportional to 217,860.84, 300,641.97 and 121,062.21 is: 167,062.52
Step by Step Solution
- Step 1: Write the proportion equation
217,860.84 : 300,641.97 = 121,062.21 : x - Step 2: Convert to fraction form
217,860.84/300,641.97 = 121,062.21/x - Step 3: Cross multiply
217,860.84x = 300,641.97 × 121,062.21 - Step 4: Simplify right side
217,860.84x = 36,396,381,306.95 - Step 5: Solve for x
x = 36,396,381,306.95/217,860.84 - Step 6: Final answer
x = 167,062.52
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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.