Finding the Fourth Proportional to 312,647.70, 431,451.99 and 176,725.65
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Solution
The fourth proportional to 312,647.70, 431,451.99 and 176,725.65 is: 243,880.36
Step by Step Solution
- Step 1: Write the proportion equation
312,647.70 : 431,451.99 = 176,725.65 : x - Step 2: Convert to fraction form
312,647.70/431,451.99 = 176,725.65/x - Step 3: Cross multiply
312,647.70x = 431,451.99 × 176,725.65 - Step 4: Simplify right side
312,647.70x = 76,248,633,376.54 - Step 5: Solve for x
x = 76,248,633,376.54/312,647.70 - Step 6: Final answer
x = 243,880.36
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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.