Finding the Fourth Proportional to 300,135.46, 450,203.94 and 122,642.43
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Solution
The fourth proportional to 300,135.46, 450,203.94 and 122,642.43 is: 183,963.95
Step by Step Solution
- Step 1: Write the proportion equation
300,135.46 : 450,203.94 = 122,642.43 : x - Step 2: Convert to fraction form
300,135.46/450,203.94 = 122,642.43/x - Step 3: Cross multiply
300,135.46x = 450,203.94 × 122,642.43 - Step 4: Simplify right side
300,135.46x = 55,214,105,197.17 - Step 5: Solve for x
x = 55,214,105,197.17/300,135.46 - Step 6: Final answer
x = 183,963.95
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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.