Finding the Fourth Proportional to 187,369.97, 280,930.12 and 103,169.79
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Solution
The fourth proportional to 187,369.97, 280,930.12 and 103,169.79 is: 154,685.94
Step by Step Solution
- Step 1: Write the proportion equation
187,369.97 : 280,930.12 = 103,169.79 : x - Step 2: Convert to fraction form
187,369.97/280,930.12 = 103,169.79/x - Step 3: Cross multiply
187,369.97x = 280,930.12 × 103,169.79 - Step 4: Simplify right side
187,369.97x = 28,983,500,759.55 - Step 5: Solve for x
x = 28,983,500,759.55/187,369.97 - Step 6: Final answer
x = 154,685.94
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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.