Finding the Fourth Proportional to 260,142.80, 390,214.20 and 201,093.80
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Solution
The fourth proportional to 260,142.80, 390,214.20 and 201,093.80 is: 301,640.70
Step by Step Solution
- Step 1: Write the proportion equation
260,142.80 : 390,214.20 = 201,093.80 : x - Step 2: Convert to fraction form
260,142.80/390,214.20 = 201,093.80/x - Step 3: Cross multiply
260,142.80x = 390,214.20 × 201,093.80 - Step 4: Simplify right side
260,142.80x = 78,469,656,291.96 - Step 5: Solve for x
x = 78,469,656,291.96/260,142.80 - Step 6: Final answer
x = 301,640.70
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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.