Finding the Fourth Proportional to 265,559.78, 398,457.42 and 139,169.98
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Solution
The fourth proportional to 265,559.78, 398,457.42 and 139,169.98 is: 208,816.68
Step by Step Solution
- Step 1: Write the proportion equation
265,559.78 : 398,457.42 = 139,169.98 : x - Step 2: Convert to fraction form
265,559.78/398,457.42 = 139,169.98/x - Step 3: Cross multiply
265,559.78x = 398,457.42 × 139,169.98 - Step 4: Simplify right side
265,559.78x = 55,453,311,148.44 - Step 5: Solve for x
x = 55,453,311,148.44/265,559.78 - Step 6: Final answer
x = 208,816.68
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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.