Finding the Fourth Proportional to 311,115.28, 429,371.28 and 190,336.96
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Solution
The fourth proportional to 311,115.28, 429,371.28 and 190,336.96 is: 262,684.70
Step by Step Solution
- Step 1: Write the proportion equation
311,115.28 : 429,371.28 = 190,336.96 : x - Step 2: Convert to fraction form
311,115.28/429,371.28 = 190,336.96/x - Step 3: Cross multiply
311,115.28x = 429,371.28 × 190,336.96 - Step 4: Simplify right side
311,115.28x = 81,725,224,146.51 - Step 5: Solve for x
x = 81,725,224,146.51/311,115.28 - Step 6: Final answer
x = 262,684.70
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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.