Finding the Fourth Proportional to 307,827.70, 424,769.86 and 178,740.94
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Solution
The fourth proportional to 307,827.70, 424,769.86 and 178,740.94 is: 246,643.70
Step by Step Solution
- Step 1: Write the proportion equation
307,827.70 : 424,769.86 = 178,740.94 : x - Step 2: Convert to fraction form
307,827.70/424,769.86 = 178,740.94/x - Step 3: Cross multiply
307,827.70x = 424,769.86 × 178,740.94 - Step 4: Simplify right side
307,827.70x = 75,923,764,060.07 - Step 5: Solve for x
x = 75,923,764,060.07/307,827.70 - Step 6: Final answer
x = 246,643.70
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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.