Finding the Fourth Proportional to 211,532.05, 291,872.59 and 125,474.81
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Solution
The fourth proportional to 211,532.05, 291,872.59 and 125,474.81 is: 173,130.54
Step by Step Solution
- Step 1: Write the proportion equation
211,532.05 : 291,872.59 = 125,474.81 : x - Step 2: Convert to fraction form
211,532.05/291,872.59 = 125,474.81/x - Step 3: Cross multiply
211,532.05x = 291,872.59 × 125,474.81 - Step 4: Simplify right side
211,532.05x = 36,622,658,190.45 - Step 5: Solve for x
x = 36,622,658,190.45/211,532.05 - Step 6: Final answer
x = 173,130.54
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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.