Finding the Fourth Proportional to 217,158.12, 299,747.58 and 135,524.70
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Solution
The fourth proportional to 217,158.12, 299,747.58 and 135,524.70 is: 187,067.38
Step by Step Solution
- Step 1: Write the proportion equation
217,158.12 : 299,747.58 = 135,524.70 : x - Step 2: Convert to fraction form
217,158.12/299,747.58 = 135,524.70/x - Step 3: Cross multiply
217,158.12x = 299,747.58 × 135,524.70 - Step 4: Simplify right side
217,158.12x = 40,623,200,855.23 - Step 5: Solve for x
x = 40,623,200,855.23/217,158.12 - Step 6: Final answer
x = 187,067.38
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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.