Finding the Fourth Proportional to 455,121.51, 682,457.63 and 139,502.31
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Solution
The fourth proportional to 455,121.51, 682,457.63 and 139,502.31 is: 209,184.61
Step by Step Solution
- Step 1: Write the proportion equation
455,121.51 : 682,457.63 = 139,502.31 : x - Step 2: Convert to fraction form
455,121.51/682,457.63 = 139,502.31/x - Step 3: Cross multiply
455,121.51x = 682,457.63 × 139,502.31 - Step 4: Simplify right side
455,121.51x = 95,204,415,164.61 - Step 5: Solve for x
x = 95,204,415,164.61/455,121.51 - Step 6: Final answer
x = 209,184.61
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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.