Finding the Fourth Proportional to 200,697.31, 276,735.28 and 128,002.99
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Solution
The fourth proportional to 200,697.31, 276,735.28 and 128,002.99 is: 176,499.35
Step by Step Solution
- Step 1: Write the proportion equation
200,697.31 : 276,735.28 = 128,002.99 : x - Step 2: Convert to fraction form
200,697.31/276,735.28 = 128,002.99/x - Step 3: Cross multiply
200,697.31x = 276,735.28 × 128,002.99 - Step 4: Simplify right side
200,697.31x = 35,422,944,024.42 - Step 5: Solve for x
x = 35,422,944,024.42/200,697.31 - Step 6: Final answer
x = 176,499.35
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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.