Finding the Fourth Proportional to 323,889.84, 485,893.08 and 155,267.28
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Solution
The fourth proportional to 323,889.84, 485,893.08 and 155,267.28 is: 232,928.88
Step by Step Solution
- Step 1: Write the proportion equation
323,889.84 : 485,893.08 = 155,267.28 : x - Step 2: Convert to fraction form
323,889.84/485,893.08 = 155,267.28/x - Step 3: Cross multiply
323,889.84x = 485,893.08 × 155,267.28 - Step 4: Simplify right side
323,889.84x = 75,443,296,902.42 - Step 5: Solve for x
x = 75,443,296,902.42/323,889.84 - Step 6: Final answer
x = 232,928.88
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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.