Finding the Fourth Proportional to 265,706.74, 398,614.79 and 147,128.95
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Solution
The fourth proportional to 265,706.74, 398,614.79 and 147,128.95 is: 220,723.70
Step by Step Solution
- Step 1: Write the proportion equation
265,706.74 : 398,614.79 = 147,128.95 : x - Step 2: Convert to fraction form
265,706.74/398,614.79 = 147,128.95/x - Step 3: Cross multiply
265,706.74x = 398,614.79 × 147,128.95 - Step 4: Simplify right side
265,706.74x = 58,647,775,507.17 - Step 5: Solve for x
x = 58,647,775,507.17/265,706.74 - Step 6: Final answer
x = 220,723.70
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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.