Finding the Fourth Proportional to 229,102.95, 316,163.76 and 127,128.81
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Solution
The fourth proportional to 229,102.95, 316,163.76 and 127,128.81 is: 175,438.70
Step by Step Solution
- Step 1: Write the proportion equation
229,102.95 : 316,163.76 = 127,128.81 : x - Step 2: Convert to fraction form
229,102.95/316,163.76 = 127,128.81/x - Step 3: Cross multiply
229,102.95x = 316,163.76 × 127,128.81 - Step 4: Simplify right side
229,102.95x = 40,193,522,573.93 - Step 5: Solve for x
x = 40,193,522,573.93/229,102.95 - Step 6: Final answer
x = 175,438.70
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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.