Finding the Fourth Proportional to 345.08, 517.80 and 201.08
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Solution
The fourth proportional to 345.08, 517.80 and 201.08 is: 301.72
Step by Step Solution
- Step 1: Write the proportion equation
345.08 : 517.80 = 201.08 : x - Step 2: Convert to fraction form
345.08/517.80 = 201.08/x - Step 3: Cross multiply
345.08x = 517.80 × 201.08 - Step 4: Simplify right side
345.08x = 104,119.22 - Step 5: Solve for x
x = 104,119.22/345.08 - Step 6: Final answer
x = 301.72
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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.