Finding the Fourth Proportional to 318,997.32, 478,044.60 and 176,905.09
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Solution
The fourth proportional to 318,997.32, 478,044.60 and 176,905.09 is: 265,107.31
Step by Step Solution
- Step 1: Write the proportion equation
318,997.32 : 478,044.60 = 176,905.09 : x - Step 2: Convert to fraction form
318,997.32/478,044.60 = 176,905.09/x - Step 3: Cross multiply
318,997.32x = 478,044.60 × 176,905.09 - Step 4: Simplify right side
318,997.32x = 84,568,522,987.01 - Step 5: Solve for x
x = 84,568,522,987.01/318,997.32 - Step 6: Final answer
x = 265,107.31
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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.