Finding the Fourth Proportional to 289,612.21, 433,509.49 and 199,126.91
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Solution
The fourth proportional to 289,612.21, 433,509.49 and 199,126.91 is: 298,065.49
Step by Step Solution
- Step 1: Write the proportion equation
289,612.21 : 433,509.49 = 199,126.91 : x - Step 2: Convert to fraction form
289,612.21/433,509.49 = 199,126.91/x - Step 3: Cross multiply
289,612.21x = 433,509.49 × 199,126.91 - Step 4: Simplify right side
289,612.21x = 86,323,405,199.38 - Step 5: Solve for x
x = 86,323,405,199.38/289,612.21 - Step 6: Final answer
x = 298,065.49
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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.