Finding the Fourth Proportional to 426,132.30, 639,032.38 and 159,747.50
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Solution
The fourth proportional to 426,132.30, 639,032.38 and 159,747.50 is: 239,558.99
Step by Step Solution
- Step 1: Write the proportion equation
426,132.30 : 639,032.38 = 159,747.50 : x - Step 2: Convert to fraction form
426,132.30/639,032.38 = 159,747.50/x - Step 3: Cross multiply
426,132.30x = 639,032.38 × 159,747.50 - Step 4: Simplify right side
426,132.30x = 102,083,825,124.05 - Step 5: Solve for x
x = 102,083,825,124.05/426,132.30 - Step 6: Final answer
x = 239,558.99
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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.