Finding the Fourth Proportional to 317,680.05, 476,414.35 and 128,091.45
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Solution
The fourth proportional to 317,680.05, 476,414.35 and 128,091.45 is: 192,094.54
Step by Step Solution
- Step 1: Write the proportion equation
317,680.05 : 476,414.35 = 128,091.45 : x - Step 2: Convert to fraction form
317,680.05/476,414.35 = 128,091.45/x - Step 3: Cross multiply
317,680.05x = 476,414.35 × 128,091.45 - Step 4: Simplify right side
317,680.05x = 61,024,602,510.24 - Step 5: Solve for x
x = 61,024,602,510.24/317,680.05 - Step 6: Final answer
x = 192,094.54
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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.