Finding the Fourth Proportional to 212,002.13, 318,149.00 and 87,343.13
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Solution
The fourth proportional to 212,002.13, 318,149.00 and 87,343.13 is: 131,074.76
Step by Step Solution
- Step 1: Write the proportion equation
212,002.13 : 318,149.00 = 87,343.13 : x - Step 2: Convert to fraction form
212,002.13/318,149.00 = 87,343.13/x - Step 3: Cross multiply
212,002.13x = 318,149.00 × 87,343.13 - Step 4: Simplify right side
212,002.13x = 27,788,127,438.91 - Step 5: Solve for x
x = 27,788,127,438.91/212,002.13 - Step 6: Final answer
x = 131,074.76
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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.