Finding the Fourth Proportional to 317,905.08, 476,857.80 and 81,247.98
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Solution
The fourth proportional to 317,905.08, 476,857.80 and 81,247.98 is: 121,872.02
Step by Step Solution
- Step 1: Write the proportion equation
317,905.08 : 476,857.80 = 81,247.98 : x - Step 2: Convert to fraction form
317,905.08/476,857.80 = 81,247.98/x - Step 3: Cross multiply
317,905.08x = 476,857.80 × 81,247.98 - Step 4: Simplify right side
317,905.08x = 38,743,732,997.24 - Step 5: Solve for x
x = 38,743,732,997.24/317,905.08 - Step 6: Final answer
x = 121,872.02
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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.