Finding the Fourth Proportional to 312,847.08, 431,723.34 and 176,878.68
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Solution
The fourth proportional to 312,847.08, 431,723.34 and 176,878.68 is: 244,089.40
Step by Step Solution
- Step 1: Write the proportion equation
312,847.08 : 431,723.34 = 176,878.68 : x - Step 2: Convert to fraction form
312,847.08/431,723.34 = 176,878.68/x - Step 3: Cross multiply
312,847.08x = 431,723.34 × 176,878.68 - Step 4: Simplify right side
312,847.08x = 76,362,654,504.39 - Step 5: Solve for x
x = 76,362,654,504.39/312,847.08 - Step 6: Final answer
x = 244,089.40
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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.