Finding the Fourth Proportional to 323,768.40, 485,442.36 and 155,284.80
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Solution
The fourth proportional to 323,768.40, 485,442.36 and 155,284.80 is: 232,826.37
Step by Step Solution
- Step 1: Write the proportion equation
323,768.40 : 485,442.36 = 155,284.80 : x - Step 2: Convert to fraction form
323,768.40/485,442.36 = 155,284.80/x - Step 3: Cross multiply
323,768.40x = 485,442.36 × 155,284.80 - Step 4: Simplify right side
323,768.40x = 75,381,819,784.13 - Step 5: Solve for x
x = 75,381,819,784.13/323,768.40 - Step 6: Final answer
x = 232,826.37
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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.