Finding the Fourth Proportional to 307,557.20, 461,408.70 and 157,820.60
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Solution
The fourth proportional to 307,557.20, 461,408.70 and 157,820.60 is: 236,768.31
Step by Step Solution
- Step 1: Write the proportion equation
307,557.20 : 461,408.70 = 157,820.60 : x - Step 2: Convert to fraction form
307,557.20/461,408.70 = 157,820.60/x - Step 3: Cross multiply
307,557.20x = 461,408.70 × 157,820.60 - Step 4: Simplify right side
307,557.20x = 72,819,797,879.22 - Step 5: Solve for x
x = 72,819,797,879.22/307,557.20 - Step 6: Final answer
x = 236,768.31
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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.