Finding the Fourth Proportional to 204,905.70, 307,358.55 and 192,439.80
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Solution
The fourth proportional to 204,905.70, 307,358.55 and 192,439.80 is: 288,659.70
Step by Step Solution
- Step 1: Write the proportion equation
204,905.70 : 307,358.55 = 192,439.80 : x - Step 2: Convert to fraction form
204,905.70/307,358.55 = 192,439.80/x - Step 3: Cross multiply
204,905.70x = 307,358.55 × 192,439.80 - Step 4: Simplify right side
204,905.70x = 59,148,017,890.29 - Step 5: Solve for x
x = 59,148,017,890.29/204,905.70 - Step 6: Final answer
x = 288,659.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.