Finding the Fourth Proportional to 320,511.70, 480,184.35 and 261,025.30
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Solution
The fourth proportional to 320,511.70, 480,184.35 and 261,025.30 is: 391,062.99
Step by Step Solution
- Step 1: Write the proportion equation
320,511.70 : 480,184.35 = 261,025.30 : x - Step 2: Convert to fraction form
320,511.70/480,184.35 = 261,025.30/x - Step 3: Cross multiply
320,511.70x = 480,184.35 × 261,025.30 - Step 4: Simplify right side
320,511.70x = 125,340,264,014.06 - Step 5: Solve for x
x = 125,340,264,014.06/320,511.70 - Step 6: Final answer
x = 391,062.99
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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.