Finding the Fourth Proportional to 317,748.92, 476,622.99 and 81,091.62
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Solution
The fourth proportional to 317,748.92, 476,622.99 and 81,091.62 is: 121,637.33
Step by Step Solution
- Step 1: Write the proportion equation
317,748.92 : 476,622.99 = 81,091.62 : x - Step 2: Convert to fraction form
317,748.92/476,622.99 = 81,091.62/x - Step 3: Cross multiply
317,748.92x = 476,622.99 × 81,091.62 - Step 4: Simplify right side
317,748.92x = 38,650,130,388.34 - Step 5: Solve for x
x = 38,650,130,388.34/317,748.92 - Step 6: Final answer
x = 121,637.33
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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.