Finding the Fourth Proportional to 312,795.84, 431,652.96 and 176,827.68
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Solution
The fourth proportional to 312,795.84, 431,652.96 and 176,827.68 is: 244,019.20
Step by Step Solution
- Step 1: Write the proportion equation
312,795.84 : 431,652.96 = 176,827.68 : x - Step 2: Convert to fraction form
312,795.84/431,652.96 = 176,827.68/x - Step 3: Cross multiply
312,795.84x = 431,652.96 × 176,827.68 - Step 4: Simplify right side
312,795.84x = 76,328,191,481.93 - Step 5: Solve for x
x = 76,328,191,481.93/312,795.84 - Step 6: Final answer
x = 244,019.20
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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.