Finding the Fourth Proportional to 252,469.12, 348,400.56 and 139,289.44
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Solution
The fourth proportional to 252,469.12, 348,400.56 and 139,289.44 is: 192,215.66
Step by Step Solution
- Step 1: Write the proportion equation
252,469.12 : 348,400.56 = 139,289.44 : x - Step 2: Convert to fraction form
252,469.12/348,400.56 = 139,289.44/x - Step 3: Cross multiply
252,469.12x = 348,400.56 × 139,289.44 - Step 4: Simplify right side
252,469.12x = 48,528,518,898.09 - Step 5: Solve for x
x = 48,528,518,898.09/252,469.12 - Step 6: Final answer
x = 192,215.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.