Finding the Fourth Proportional to 307,905.12, 461,499.12 and 130,353.12
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Solution
The fourth proportional to 307,905.12, 461,499.12 and 130,353.12 is: 195,377.88
Step by Step Solution
- Step 1: Write the proportion equation
307,905.12 : 461,499.12 = 130,353.12 : x - Step 2: Convert to fraction form
307,905.12/461,499.12 = 130,353.12/x - Step 3: Cross multiply
307,905.12x = 461,499.12 × 130,353.12 - Step 4: Simplify right side
307,905.12x = 60,157,850,169.25 - Step 5: Solve for x
x = 60,157,850,169.25/307,905.12 - Step 6: Final answer
x = 195,377.88
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1.5x scale
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.