Finding the Fourth Proportional to 217,198.30, 299,401.38 and 152,485.99
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Solution
The fourth proportional to 217,198.30, 299,401.38 and 152,485.99 is: 210,197.39
Step by Step Solution
- Step 1: Write the proportion equation
217,198.30 : 299,401.38 = 152,485.99 : x - Step 2: Convert to fraction form
217,198.30/299,401.38 = 152,485.99/x - Step 3: Cross multiply
217,198.30x = 299,401.38 × 152,485.99 - Step 4: Simplify right side
217,198.30x = 45,654,515,836.67 - Step 5: Solve for x
x = 45,654,515,836.67/217,198.30 - Step 6: Final answer
x = 210,197.39
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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.