Finding the Fourth Proportional to 312,890.01, 431,785.62 and 176,950.65
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Solution
The fourth proportional to 312,890.01, 431,785.62 and 176,950.65 is: 244,190.43
Step by Step Solution
- Step 1: Write the proportion equation
312,890.01 : 431,785.62 = 176,950.65 : x - Step 2: Convert to fraction form
312,890.01/431,785.62 = 176,950.65/x - Step 3: Cross multiply
312,890.01x = 431,785.62 × 176,950.65 - Step 4: Simplify right side
312,890.01x = 76,404,746,119.65 - Step 5: Solve for x
x = 76,404,746,119.65/312,890.01 - Step 6: Final answer
x = 244,190.43
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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.