Finding the Fourth Proportional to 216,516.65, 298,795.23 and 121,028.58
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Solution
The fourth proportional to 216,516.65, 298,795.23 and 121,028.58 is: 167,020.70
Step by Step Solution
- Step 1: Write the proportion equation
216,516.65 : 298,795.23 = 121,028.58 : x - Step 2: Convert to fraction form
216,516.65/298,795.23 = 121,028.58/x - Step 3: Cross multiply
216,516.65x = 298,795.23 × 121,028.58 - Step 4: Simplify right side
216,516.65x = 36,162,762,397.67 - Step 5: Solve for x
x = 36,162,762,397.67/216,516.65 - Step 6: Final answer
x = 167,020.70
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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.