Finding the Fourth Proportional to 217,433.20, 326,149.80 and 201,686.80
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Solution
The fourth proportional to 217,433.20, 326,149.80 and 201,686.80 is: 302,530.20
Step by Step Solution
- Step 1: Write the proportion equation
217,433.20 : 326,149.80 = 201,686.80 : x - Step 2: Convert to fraction form
217,433.20/326,149.80 = 201,686.80/x - Step 3: Cross multiply
217,433.20x = 326,149.80 × 201,686.80 - Step 4: Simplify right side
217,433.20x = 65,780,109,482.64 - Step 5: Solve for x
x = 65,780,109,482.64/217,433.20 - Step 6: Final answer
x = 302,530.20
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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.