Finding the Fourth Proportional to 426,134.30, 639,035.38 and 159,749.50
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Solution
The fourth proportional to 426,134.30, 639,035.38 and 159,749.50 is: 239,561.99
Step by Step Solution
- Step 1: Write the proportion equation
426,134.30 : 639,035.38 = 159,749.50 : x - Step 2: Convert to fraction form
426,134.30/639,035.38 = 159,749.50/x - Step 3: Cross multiply
426,134.30x = 639,035.38 × 159,749.50 - Step 4: Simplify right side
426,134.30x = 102,085,582,437.31 - Step 5: Solve for x
x = 102,085,582,437.31/426,134.30 - Step 6: Final answer
x = 239,561.99
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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.